ST. PETERSBURG - Unidentified vandals attacked a Jewish cemetery in St. Petersburg for the second time in two weeks, damaging 60 gravestones, the city's Jewish community said Monday.

"The repeated character of several recent attacks against the Jewish cemetery makes us believe that it was not simple acts of vandalism, but that those actions could be nationalist and extremist in nature," said Mark Grubarg, head of the city's Jewish Religious Community.

Jewish officials decided Monday to meet with the city police chief, raise funds to the build a fence around the cemetery and post additional guards there, Grubarg said.

On October 6, vandals destroyed more than 40 tombstones at the Jewish cemetery.