One year ago Monday, three people were killed and more than 200 injured in two explosions at the Boston Marathon. Take a look back at scenes from that day.
Two explosions rocked the Boston Marathon steps away from the finish line Monday.
Three were killed and more than 200 injured, according to CNN.
The explosions happened at about 2:45 p.m. ET., more than two hours after the first race participants crossed the finish line, according to CNN.
Another incident occurred at the JFK Library in Boston, a half hour after the blasts at the marathon. Authorities initially said they were investigating whether the library incident was related to the two explosions, but Boston police later said on their Twitter feed the explosion at the library appeared to be related to a fire.
Runners were evacuated from the finish line area immediately after the explosions, according to WCVB.
Sixteen people lost limbs in the explosions, according to the Washington Post.
New York, Washington and other cities tightened security immediately after the explosions, according to CNN.
The race and subway services were stopped after the explosions, according to CNN.
President Barack Obama talks on the phone in the Oval Office with FBI Director Robert Mueller for an update on the explosions that rocked the Boston Marathon.Seated with the president are Lisa Monaco, assistant to the president for homeland security and counterterrorism, and Chief of Staff Denis McDonough.