Greek police says security checks have been increased at Muslim prayer house and other immigrant sites following the July 22 massacre in Norway.
A spokesman for the Greek Police told The Associated Press that the beefed up "monitoring" had been ordered amid concerns raised by the shooting rampage that claimed 77 lives. EU authorities warned at an emergency meeting last week about the risk of copycat attacks.
Greece has conditions that may make it ripe for an extreme-right rise: an economy on the verge of collapse and unwanted status as Europe's No. 1 gateway for illegal immigration. It has suffered a spate of hate attacks by far-right groups.
Last November, the leader of a neo-Nazi group won a seat on Athens' city council, with an unprecedented 5.3 percent of the vote.