Boston public transport suspended as police hunt bomb suspect

Police have said all public transport in the greater Boston area has been suspended, as the manhunt for a suspect in Monday's marathon bombings continues.

The authorities tracked two men to Watertown, west of Boston, where one was killed and another escaped.

Speaking at a news conference, Undersecretary for Homeland Security Kurt Schwartz asked people in the town and surrounding suburbs not to leave their homes as police continue their search.