UPDATE (3:22PM): AP says two more devices have been found at scene of Boston Marathon and are being dismantled.
UPDATE (3:19PM): Boston police say two dead, 22 injured.
UPDATE (3:09PM): ABC now reporting fatalities in connection with the apparent bombing at the Boston Marathon. Two devices went off in short succession; a nearby hotel was evacuated amid reports that police had found a third possible device.
UPDATE (2:49PM): Deadspin website has compilation of pictures and video from the moment of the exlposion and the immediate aftermath. Link here.
UPDATE (2:43PM): Boston hospitals report victims with severed limbs and severe burns. Boston police telling people to stay away from trash cans in the vicinity of Boston Marathon route. ABC reporting "dozens" of victims.
ABC News reporting at least two explosions near the finish line, with reports of multiple injuries. Tune to 970 WMAY for live coverage, and check back for updates at www.wmay.com