Live blog: Bombings at the Boston Marathon
Boston.com sports producer Steve Silva was near the finish line when the explosions occurred near the intersection of Boylston and Exeter streets.
"I was there at the finish, shooting finish line scenes, and then bang, it just went off, and then less than 15 to 20 seconds after there was a second explosion, closer to Fairfield street," Silva said.
"It was just immediately [evident] there were injuries, right in the middle of the spectator crowds. There was blood everywhere, there were victims being carried out on stretchers. I saw someone lose their leg, people are crying, people are confused."
"It was just an explosion, it came out of nowhere. There are multiple injuries. I saw dismemberment, I saw blood everywhere. People are badly injured."