A 27-year-old man was in custody on Monday after detonating an explosive device in a New York City subway station during the morning commute. The suspect, Akayed Ullah, was one of four people injured in the explosion, which occurred at about 7.20am in a passageway near 42nd Street and 8th Avenue, in midtown Manhattan near Times Square, New York City police said. At a press conference, New York police commissioner James O’Neill said the suspect had “an improvised low-tech explosive device attached to his body”.