Moscow - Russian police arrested over 100 neo-Nazi demonstrators at an unsanctioned march Tuesday in Moscow, the Interfax agency reported.

The participants in a so-called Russian March were taken away by members of the special forces OMON unit, the agency reported, citing police sources.

Moscow city authorities had not sanctioned the demonstration, coming on Russia's National Unity Day.

Meanwhile some 400 nationalists gathered in an officially-approved rally across the street from the seat of the Russian government.

Reports in Moscow said extreme rightists had gathered in other cities around the country to chant slogans like "Russia for the Russians." (dpa)