SYRACUSE, N.Y. (AP) _ Authorities say a man living at a Syracuse homeless shelter is recovering from a gunshot wound suffered when someone opened fire on him while he stood on a railroad bridge.

Police say the 36-year-old man was standing on the bridge over Onondaga Creek late Monday night when he was shot. The victim then ran to the nearby Rescue Mission shelter where he lives. He was treated at a hospital for a wound to his upper left arm.

Police say the shooter repeatedly shot at a nearby building. Officers found 15 spent rifle casings at the scene.

Officials say it's unclear if the man was the intended target.

No arrests have been reported.