The suspect wanted for allegedly pushing a man to his death onto the subway tracks at a Midtown station on Monday has been taken into custody by police, an official with knowledge of the matter said Tuesday.

The suspect, who was not identified, was being questioned by investigators and was expected to be placed in a line-up for witnesses to identify him, the official said.

Ki-Suck Han, 58 years old, was killed after he was struck by a Q train around 12:30 p.m. Monday at the 49th Street station near Times Square.