Authorities believe a person they've engaged in Watertown, Massachusetts, is Dzhokar Tsarnaev, a suspect in this week's deadly Boston Marathon bombings, a law enforcement official told CNN.
Law enforcement officials say the suspect is cornered on a boat in a yard. There was a large police presence and a helicopter flying overhead in Watertown, where people told CNN they had heard a barrage of gunfire.
As many as a dozen people were moved away from the scene of intense police activity, including a young girl being carried in a police officer's arms.
Follow complete coverage on CNN TV, http://cnn.com and CNN Mobile.
Law enforcement officials say the suspect is cornered on a boat in a yard. There was a large police presence and a helicopter flying overhead in Watertown, where people told CNN they had heard a barrage of gunfire.
As many as a dozen people were moved away from the scene of intense police activity, including a young girl being carried in a police officer's arms.
Follow complete coverage on CNN TV, http://cnn.com and CNN Mobile.