- Two Dead Twenty Three Injured
- U.S. Federal Aviation Administration creates no-fly zone over site of Boston marathon following explosions
Another explosion could be heard a few seconds later.
There were two boom sounds heard from inside the Fairmount Copley Plaza Hotel.
Race officials have locked down the hotel.
A photo has emerged which appeared to show the moment one of the blasts took place.
Police made their way through competitors as they ran towards the scene.
Bloody spectators were being carried to the medical tent that had been set up to care for tired runners.
"There are a lot of people down," said one man, whose marathon number identified him as Frank Deruyter, who was not injured.
But marathon workers were carrying one woman, who did not appear to be a runner, to the medical area whose leg was hurt.
A Boston police officer was taken from the course with a bleeding leg injury.
DEVELOPING: Multiple casualties are reported after at least two explosions were heard near the finish line of the Boston Marathon, according to the Boston Herald.
Witnesses reportedly heard two booms that sounded like two claps of thunder near the finish line inside the Fairmount Copley Plaza Hotel.
The explosions occurred just before 3 p.m. Video of the scene showed a number of emergency crews in the area tending to victims and blood on the ground near the finish line.
"I saw two explosions. The first one was beyond the finish line. I heard a loud bang and I saw smoke rising," Boston Herald reporter Chris Cassidy, who was running in the marathon, told the newspaper. "I kept running and I heard behind me a loud bang. It looked like it was in a trash can or something...There are people who have been hit with debris, people with bloody foreheads.”
A photographer with Fox affiliate WFXT reported seeing a number of victims with lost limbs.