BERLIN (JTA) — A Jewish cemetery in the northern German city of Oldenburg was desecrated.

Swastikas were daubed on the entrance columns, a wall and two cars parked near the cemetery over the weekend, the Oldenburger Online newspaper reported. Police are investigating.

Over the past few years, the cemetery has been targeted by right-wing extremists, one of whom was sentenced to two years’ probation for throwing paint balls on the gravestones.