Search for suspect that punched man in face on subway

NEW YORK (WABC) -- Police are searching for a man who punched a straphanger in the face in Manhattan for no apparent reason.

Someone managed to snap a picture of the suspect before he ran away.

Police say he assaulted a 23-year-old man inside an "R" train Tuesday night, at the 42nd Street Station.

The victim suffered a swollen and bloody nose.