pr 15, 2013 3:27pm
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3:43 pm ET: Trauma nurse tells ABC News that the race's medical tent has become a makeshift morgue. Dealing with injuries including severed limbs and children with severe burns.
3:41 pm ET: Eyewitness Hayden Cary describes a "hectic, crazy scene." Heard explosion go off within seconds of each other near a car, steps from finish line.
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3:34 pm ET: Police bomb squads sweep area looking for suspicious packages.
3:29 pm ET: Massachusetts General Hospital confirms at least 4 injured taken there.
3:25 pm ET: Police warning people in area to avoid trash cans.
3:15 pm ET: Boston Police Department says two explosions on Boyleston street near the finish line of the Boston Marathon. Police, fire and bomb squad responding. The number of injuries is unknown. The cause is unknown.
The two explosions took place around 3pm, within second of each other. The first runners in the marathon crossed the finish line around noon.



http://abcnews.go.com/blogs/headlines/2013/04/live-updates-boston-marathon-explosion/