BROOKLYN - Anti-Semitic words were found scrawled on the walls of an alley in Crown Heights. 

The swastikas and anti-Jewish writings have since been painted over, but a News 12 viewer sent in photos of the graffiti. 

It's unclear when the Schenectady Avenue spray-paintings were made, but the pictures were taken Saturday night. 

Police say they're investigating, and no arrests have been made.