(NBC News) Two explosions rocked the finish line of the Boston Marathon on Monday, witnesses told NBC News.
Will Ritter, the spokesman for a Massachusetts Senate candidate, said that he heard what sounded like two explosions and saw smoke rising near the Boston Public Library. He said that he saw three fire engines and police running to the site.
Ritter said that people hit the ground.
Janet Wu, a reporter for NBC affiliate WHDH, told NBC News that she heard two loud explosions.
Boston police confirmed there was an incident but did not immediately give details. Police, fire and medical technicians were responding.
Read the NBC News report HERE.