A mother of five answered a phone call Monday to learn that two of her sons, who had traveled together to watch the Boston Marathon, would lose their legs.


Liz Norden told the Boston Globe that her 33- and 31-year-old sons were transported to Brigham and Women's Hospital and Beth Israel Deaconess Medical Center respectively, both with leg burns that would require amputations.


The unbelievable nightmare continues at area hospitals today, as staff works around the clock to tend to the victims of the Boston Marathon twin bombings. CNN reports that the number of injured has risen to at least 176, 17 of whom had to receive amputations.


On Monday, doctors at Massachusetts General Hospital performed amputations and removed shrapnel as nurses moved less-injured people out of the Intensive Care Unit. Brigham and Women's Hospital staff saw ordinary material -- rocks, soda cans, metal -- turn into deadly projectiles in Monday's blast. At Boston Children's Hospital, the list of wounded included eight children under the age of 15, one of them a 2-year-old boy.


The list of injuries may change throughout the days ahead. Here is a list of some area hospitals' reported injury numbers as of Tuesday morning:


Boston Children's Hospital
8 injuries, ranging from good to serious conditions

No children in critical condition

Ages range from 2 to 15 years old

Source: Reuters

Brigham and Women's Hospital

31 injuries

9 in critical condition, one with "life-threatening" injuries

Source: ABC News


Massachusetts General Hospital

29 injuries

8 in critical condition

Several amputations

Source: The Daily Beast


Beth Israel Deaconess Medical Center

24 injuries, 7 released as of Tuesday morning

4 in critical condition, 13 in serious condition

Source: CBS News


Tufts Medical Center

9 injuries

Source: ABC News



The death toll rose to three people after the explosion. An 8-year-old boy, Martin Richard, was one of the victims.


A Mass. General Hospital spokesman reported this morning that four of those in critical condition had to receive amputations, and several more limbs are "at risk." The injuries were mainly on the lower half of the body, and doctors removed a "variety of sharp objects, including nails." The spokesman said that the metallic fragments -- including the nails -- were concentrated enough that they could have come from the bomb, rather than the environment around the bomb, but that statement is not confirmed by authorities.





Related on HuffPost:






  • Boston Marathon Explosion


    Police officers with their guns drawn hear the second explosion down the street. The first explosion knocked down a runner at the finish line of the 117th Boston Marathon. (John Tlumacki / The Boston Globe / Getty Images)




  • Boston Marathon Explosion


    Newspapers are on sale at a stand on Newbury Street on April 16, 2013 in Boston, Massachusetts. Security is especially tight in the city of Boston after two explosions went off near the finish of the Marathon, killing three people and injuring at least 141 others. Darren McCollester / Getty Images)




  • WARNING


    Some photos in this slideshow are graphic and may be disturbing to some viewers.




  • Boston Marathon Explosion


    In this photo provided by The Daily Free Press and Kenshin Okubo, people react to an explosion at the 2013 Boston Marathon in Boston, Monday, April 15, 2013. Two explosions shattered the euphoria of the Boston Marathon finish line on Monday, sending authorities out on the course to carry off the injured while the stragglers were rerouted away from the smoking site of the blasts. (Kenshin Okubo / The Daily Free Press / AP)




  • Boston Marathon Explosion




  • Boston Marathon Explosion


    A woman kneels and prays at the scene of the first explosion on Boylston Street near the finish line of the 117th Boston Marathon on April 15, 2013. (John Tlumacki / The Boston Globe / Getty Images)




  • Boston Marathon Explosion


    Victims are in shock and being treated at the scene of the first explosion that went off near the finish line of the Boston Marathon. (John Tlumacki / The Boston Globe / Getty Images)




  • Boston Marathon Explosion


    People tend to an injured woman on the corner of Exeter and Newbury Streets after two explosions went off near the finish line of the 117th Boston Marathon on April 15, 2013. (Bill Greene / The Boston Globe / Getty Images)




  • Boston Marathon Explosion


    The marathon finish line bridge is seen on Boylston Street on April 16, 2013 in Boston, Massachusetts. on April 16, 2013 in Boston, Massachusetts. Security is especially tight in the city of Boston after two explosions went off near the finish of the Marathon, killing three people and injuring at least 141 others. (Darren McCollester / Getty Images)




  • Boston Marathon Explosion


    Neighbors hug outside the home of the Richard family in the Dorchester neighborhood of Boston, Tuesday, April 16, 2013. Martin Richard, 8, was killed in Mondays bombing at the finish line of the Boston Marathon. (Michael Dwyer / AP)




  • Boston Marathon Explosion


    Bystanders help an injured woman at the scene of the first explosion on Boylston Street near the finish line of the 117th Boston Marathon. (John Tlumacki / The Boston Globe / Getty Images)




  • Boston Marathon Explosion


    Medical workers runs an injured man past the finish line the 2013 Boston Marathon following an explosion in Boston, Monday, April 15, 2013. Two explosions shattered the euphoria of the Boston Marathon finish line on Monday, sending authorities out on the course to carry off the injured while the stragglers were rerouted away from the smoking site of the blasts. (Charles Krupa / AP)




  • Boston Marathon Explosion


    Police and federal officials exit an apartment complex at 364 Ocean Avenue with a possible connection to the earlier expolsions during the Boston Marathon on April 15, 2013 in Revere, Massachusetts. Three people are confirmed dead and at least 141 injured after two explosions went off near the finish line to the marathon. (Darren McCollester / Getty Images)




  • Boston Marathon Explosion


    A victim of the first explosion is helped on the sidewalk of Boylston Street, after two explosions went off near the finish line of the 117th Boston Marathon. (John Tlumacki / The Boston Globe / Getty Images)




  • Boston Marathon Explosion


    Unclaimed finish line bags are viewed near the scene of a twin bombing at the Boston Marathon, on April 16, 2013 in Boston, Massachusetts. Three people are confirmed dead and at least 141 injured after the explosions went off near the finish line of the marathon yesterday. The bombings at the 116-year-old Boston race, resulted in heightened security across the nation with cancellations of many professional sporting events as authorities search for a motive to the violence. (Spencer Platt / Getty Images)




  • Boston Marathon Explosion


    A heavily armed Boston police officer (R) and a National Guard soldier (L) stands guard in front of the Taj Hotel April 16, 2013 in Boston, Massachusetts, in the aftermath of two explosions that struck near the finish line of the Boston Marathon April 15. A massive probe was underway Tuesday after two bombs struck the Boston Marathon, killing at least three and wounding more than 100. Monday's blasts near the finishing line raised fears of a terrorist attack more than a decade after nearly 3,000 people were killed in suicide airliner strikes on New York, Washington and Pennsylvania on September 11, 2001. US President Barack Obama went on national television to warn against "jumping to conclusions" but a senior White House official, speaking on condition of anonymity, said such an attack was "clearly an act of terror." (Stan Honda / AFP / Getty Images)




  • Boston Marathon Explosion


    A man comforts a victim on the sidewalk at the scene of the first explosion near the finish line of the 117th Boston Marathon. (John Tlumacki / The Boston Globe / Getty Images




  • Boston Marathon Explosion


    Emergency personnel respond to the scene after two explosions went off near the finish line of the 117th Boston Marathon on April 15, 2013. (David L. Ryan / The Boston Globe / Getty Images)




  • Boston Marathon Explosion


    Boston Police look at blown out windows at the scene of the first explosion on Boylston Street near the finish line of the Boston Marathon. (John Tlumacki / The Boston Globe / Getty Images)




  • Boston Marathon Explosion


    BOSTON - APRIL 15: Police officers with their guns drawn hear the second explosion down the street. The first explosion knocked down a runner at the finish line of the 117th Boston Marathon. (Photo by John Tlumacki/The Boston Globe via Getty Images)




  • Boston Marathon Explosion


    Victims lay on the sidewalk as emergency personnel respond to the scene of the first explosion near the finish line of the Boston Marathon, April 15, 2013. (John Tlumacki / The Boston Globe / Getty Images)




  • Boston Marathon Explosion




  • Boston Marathon Explosion


    Injured people lie on the sidewalk near a barrier at the scene of the first explosion that went off near the finish line of the 117th Boston Marathon. (John Tlumacki / The Boston Globe / Getty Images)




  • Boston Marathon Explosion


    BOSTON - APRIL 15: Emergency personnel respond to the scene after two explosions went off near the finish line of the 117th Boston Marathon on April 15, 2013. (Photo by David L. Ryan/The Boston Globe via Getty Images)




  • Boston Marathon Explosion


    Passersby put pressure on a victim's leg to try to stop the bleeding at the scene of the first explosion near the finish line of the Boston Marathon. (John Tlumacki / The Boston Globe / Getty Images)




  • Boston Marathon Explosion


    Blood from victims covers the sidewalk on Boylston Street, at the site of an explosion during the 2013 Boston Marathon in Boston, Monday, April 15, 2013. At the right foreground is a folding chair with the design of an American flag on the cover. Two explosions shattered the euphoria of the Boston Marathon finish line on Monday, sending authorities out on the course to carry off the injured while the stragglers were rerouted away from the smoking site of the blasts. (Charles Krupa / AP)




  • Boston Marathon Explosion


    A runner reacts near Kenmore Square after two bombs exploded during the 117th Boston Marathon on April 15, 2013 in Boston, Massachusetts. Two people are confirmed dead and at least 23 injured after two explosions went off near the finish line to the marathon. (Alex Trautwig / Getty Images)




  • Boston Marathon Explosion


    BOSTON - APRIL 15: (EDITOR'S NOTE: THIS IMAGE CONTAINS GRAPHIC CONTENT) A person who was injured in an explosion near the finish line of the 117th Boston Marathon is taken away from the scene in a wheelchair. (Photo by David L. Ryan/The Boston Globe via Getty Images)




  • Boston Marathon Explosion


    A runner passes a police officer dressed in tactical gear, who blocks a road leading to the Boston Marathon route, the morning after explosions killed three and injured more than 140 in Boston, Tuesday, April 16, 2013. The bombs that blew up seconds apart at the finish line of one of the world's most storied races left the streets spattered with blood and glass, and gaping questions of who chose to attack at the Boston Marathon and why. (Charles Krupa / AP)




  • Boston Marathon Explosion


    A person who was injured in an explosion near the finish line of the 117th Boston Marathon is taken away from the scene in a wheelchair. (David L. Ryan / The Boston Globe / Getty Images)




  • Boston Marathon Explosion


    Carlos Arredondo, who was at the finish line of the 117th Boston Marathon when two explosives detonated, leaves the scene on April 15, 2013 in Boston, Massachusetts. Two people are confirmed dead and at least 28 injured after at least two explosions went off near the finish line to the marathon. (Darren McCollester / Getty Images)




  • Boston Marathon Explosion


    In this image from video provided by WBZ TV, spectators and runners run from what was described as twin explosions that shook the finish line of the Boston Marathon, Monday, April 15, 2013, in Boston. Two explosions shattered the euphoria of the Boston Marathon finish line on Monday, sending authorities out on the course to carry off the injured while the stragglers were rerouted away from the smoking site of the blasts. (AP Photo/WBZTV) MANDATORY CREDIT




  • Boston Marathon Explosion


    BOSTON - APRIL 15: (EDITOR'S NOTE: THIS IMAGE CONTAINS GRAPHIC CONTENT) A person who was injured in an explosion near the finish line of the 117th Boston Marathon is taken away from the scene on a stretcher. (Photo by David L. Ryan/The Boston Globe via Getty Images)




  • Boston Marathon Explosion


    Officials react as the first explosion goes off on Boylston Street near the finish line of the 117th Boston Marathon on April 15, 2013. (John Tlumacki / The Boston Globe / Getty Images)




  • Boston Marathon Explosion


    First responders tend to the wounded after two explosions occurred along the final stretch of the Boston Marathon on Boylston Street in Boston, Massachusetts, U.S., on Monday, April 15, 2013. (Kelvin Ma / Bloomberg / Getty Images)




  • Boston Marathon Explosion


    Medical workers aid injured people at the finish line of the 2013 Boston Marathon following an explosion in Boston, Monday, April 15, 2013. Two explosions shattered the euphoria of the Boston Marathon finish line on Monday, sending authorities out on the course to carry off the injured while the stragglers were rerouted away from the smoking site of the blasts. (AP Photo/Charles Krupa)




  • Boston Marathon Explosion




  • Boston Marathon Explosion


    BOSTON - APRIL 15: Two officials run away from the first explosion, right, on Boylston Street at the 177th Boston Marathon, April 15, 2013. (Photo by John Tlumacki/The Boston Globe via Getty Images)




  • Boston Marathon Explosion


    A person who was injured in the first explosion is wheeled across the finish line of the Boston Marathon. (John Tlumacki / The Boston Globe / Getty Images)




  • Boston Marathon Explosion




  • Boston Marathon Explosion




  • Boston Marathon Explosion


    First responders rush to help injured people after two explosions occurred along the final stretch of the Boston Marathon on Boylston Street in Boston, Massachusetts, U.S., on Monday, April 15, 2013. Two powerful explosions rocked the finish line area of the Boston Marathon near Copley Square and police said many people were injured. (Kelvin Ma / Bloomberg / Getty Images)




  • Boston Marathon Explosion




  • Boston Marathon Explosion




  • Boston Marathon Explosion


    Emergency workers aid injured people at the finish line of the 2013 Boston Marathon following an explosion in Boston, Monday, April 15, 2013. (AP Photo/Charles Krupa)




  • Boston Marathon Explosion




  • Boston Marathon Explosion




  • Boston Marathon Explosion


    There was smoke and panic in the street as emergency personnel responded to the scene after two explosions went off near the finish line of the 117th Boston Marathon on April 15, 2013. (David L. Ryan / The Boston Globe / Getty Images)




  • Boston Marathon Explosion




  • Boston Marathon Explosion


    BOSTON - APRIL 15: (EDITOR'S NOTE: THIS IMAGE CONTAINS GRAPHIC CONTENT) A person who was injured in an explosion near the finish line of the 117th Boston Marathon is taken away from the scene on a stretcher. (Photo by David L. Ryan/The Boston Globe via Getty Images)




  • Boston Marathon Explosion