Police have arrested a Manhattan man in connection with a pattern of robberies dating back to May.
Dion Whitehead, 38, is charged with four counts of robbery.
Police have said the same person was responsible for at least 16 incidents, including the four for which Whitehead was arrested.
He allegedly walked up to his victims, flashed or simulated a gun or a knife, and demanded cellphones and other items.
Most of the robberies took place on the Lower East Side and the East Village.