(3:05 pm EST): A witness has told the Good Men Project that about 3 hours after the first runners crossed the finish line of the Boston Marathon, what sounded like 2 bombs being exploded were reported.
As of 3:05 EST no major media outlets are reporting on injuries or the safety of runners or spectators.
Stay tuned for updates as they roll in.
UPDATE (3:17 pm EST): The Associated Press reports, that authorities are investigating the report of two explosions at the finish line of the Boston Marathon. The explosions were reported coming from inside the Fairmount Copley Plaza Hotel. The hotel has been locked down for the investigation.
The GMP witness at the finish line is reporting numerous severe injuries as a result of the explosions.
UPDATE: ABC News reports that Boston Police are advising people to avoid public trash cans at this time.
Boston runners can be tracked via this website, though the tracking device only reports whether a person has passed a certain mile-marker. The finish line area has been cleared, the marathon cancelled, so no more runners will be crossing.
UPDATE (3:57pm EST): This Vine (short video via Twitter) shows the moment of the explosion.
Photos from the scene can be found in these tweets:
UPDATE (4:08pm EST): The Boston Globe tweeted this status update at 2:53 EST
UPDATE (4:13pm EST): According to CBS News Boston Police are reporting 2 dead and 23 injured so far.
UPDATE (4:32pm EST): CBS has been covering the explosion since shortly after it happened. Watch the special report:
UPDATE (4:46pm EST): Several sources are reporting more devices being found. Officials are clearing the area.
UPDATE (1:13am EST): CNN reports that the FBI has taken the lead in the investigation surrounding the double bombing that killed 3 and injured over 140 near the finish line of the Boston Marathon on Monday. There are a “range of different agencies” now involved in the investigation, but officials are cautioning that “very little is known at this point.”
The special agent in charge of the FBI’s Boston Division, Richard DesLauriers, said at a news briefing on Monday evening, “This will be a combined federal, state and local effort,” but that the FBI was “declaring federal jurisdiction over the matter through the Boston Joint Terrorism Task Force.”
FOX News reports that there were a total of five explosive devices found in the area, but only the two at the finish line were detonated. There are also reports that a “person of interest” is being guarded at a local hospital, but Boston Police Commissioner Edward Davis said, “There is no suspect. There are people we’re talking to.”