Pittsburgh Police responded to a report of a street robbery on the Smithfield Street Bridge around 6 p.m.
Zone 3 officers met with a female victim at the south end of the bridge near Station Square. The victim says a male approached her from the rear, placed a weapon to her back then demanded her purse. The suspect emptied the purse before tossing it into the river.
He was last seen headed towards downtown wearing a black hooded sweatshirt.
Police are investigating.