"The Interior Ministry's units for struggle against extremism are taking additional measures to prevent nationalistic rallies on Hitler's birthday celebrated on April 20," a source in the Interior Ministry said.
It was earlier reported that Russian neo-Nazis were planning to celebrate Hitler's birthday, three weeks before Victory Day celebrations - on May 8 in Europe and May 9 in Russia - which mark the defeat of Nazi Germany.
Similar preventive measures in 2008 enabled the police to fully control the situation on that day and prevent serious incidents linked with extremist manifestations, the source said.
Attacks on foreigners and ethnic minorities are a regular occurrence in Moscow and St. Petersburg, as well as other Russian cities.
According to the Russian non-governmental organization SOVA, last year more than 630 Russian citizens and foreigners became targets of xenophobic attacks, most of them in Moscow, the Moscow Region and St. Petersburg.