BOSTON (WKOW) -- Authorities in Boston Tuesday morning updated the number of injured in Monday's explosions to 176, with 17 of them in critical condition.
Three people have died from the explosions, which happened about 12 seconds apart near the finish line of Monday's Boston Marathon, while some runners were still on the course and crowds were still gathered near the finish line.
Boston Police confirmed Tuesday morning that security made two sweeps for explosives prior to the race. Police also say they are collecting surveillance video from businesses near the finish line to aid in the investigation, and are asking the public for any relevant photos or video.
Authorities said processing the crime scene could take several days, with local, state and federal agencies all working together.
The FBI is emphasizing Tuesday that there is no reason for authorities
Multiple media sources have reported that one of the deceased is an 8-year-old boy, whose mother and sister were also injured as they waited for their father to finish the race.
Eight hospitals are treating those hurt, with injuries ranging from cuts and bruises to amputations. Many victims suffered lower leg injuries and shrapnel wounds. Others suffered ruptured eardrums.
Dr. Richard Wolfe, chief of the department of emergency medicine at Beth Israel Deaconess Medical Center, said Tuesday that one or two of the hospital's 21 patients faced a "high probability of mortality."
The FBI has taken the lead in the investigation. Officials say they are treating it as a criminal investigation that is a potential terrorist investigation. They have not identified any suspects at this point and officials in Washington say there has been no immediate claim of responsibility.
WBZ-TV in Boston is reporting that police are searching an apartment in a Boston suburb, and authorities confirm it is part of the investigation into the explosions. A search warrant was served Monday night in an apartment in Revere, Massachusetts. Massachusetts State Police provided no further details.
BOSTON (WKOW) -- Boston Police say they have no suspects in custody in the two explosions Monday afternoon near the finish line of the Boston Marathon, which killed two people and injured dozens more.
Also, police say the fire at JFK Library in Boston was not related to the explosions at the marathon.
BOSTON (WKOW) -- Boston Police say two people are dead and at least 23 injured after explosions near the finish line of the Boston Marathon.
The Boston Marathon facebook page confirms two bombs exploded near the finish line, and ABC News cites authorities as saying the first explosion happened at a Marathon Sports Running Store and that the two explosions were on Boylston Street.
ABC's live streaming coverage of the explosions can be seen here.
By our court at 27 News, there were 444 runners from Wisconsin entered in the Boston Marathon, with 45 from Madison and seven from Middleton.
BOSTON (AP) -- Two explosions at the finish line of the Boston Marathon have resulted in injuries.
ABC has live streaming coverage here.
Bloody spectators were being carried Monday to the medical tent that had been set up to care for fatigued runners. Police wove through competitors as they ran back toward the course.
"There are a lot of people down," said one man, whose bib No. 17528 identified him as Frank Deruyter of North Carolina. He was not injured, but marathon workers were carrying one woman, who did not appear to be a runner, to the medical area as blood gushed from her leg. A Boston police officer was wheeled from the course with a leg injury that was bleeding.
About three hours after the winners crossed the line, there was a loud explosion on the north side of Boylston Street, just before the photo bridge that marks the finish line. Another explosion could be heard a few seconds later.