Police have foiled an attempt by the opposition to stage an unauthorized rally near the Pushkin monument in Moscow.
Police started arresting young people who gathered in the square, an Interfax correspondent said.
The demonstrators wearing white ribbons and symbols of opposition movements chanted anti-governmental slogans and tried to break through a police cordon.
By now, up to 20 young people have been held.
Police are asking passers-by not to stop on the sidewalk and proceed to the subway.
Vans with the arrested demonstrators started to depart. One reporter ended up in a van by mistake and was released shortly afterwards. The arrested protestors chanted "Disgrace!" from police vans.
Police are filming what is happening on a video camera. A white Gazel vehicle drove up to the square with equipment for live coverage of the events.
At the moment, no arrests are being made, but police continue patrols, and more police vans and vehicles are arriving at the square.
Meanwhile, six vans and two police buses are parked near the Triumfalnaya Square.
Earlier on March 6, various youth movements from across the country, including Moscow, posted calls on social network sites to get together in the squares where rallies were held on March 5.
In the evening, the police encircled and closed Pushkinskaya Square. Only police officers are now in the square, about 100 of them. Police vans are parked along the square, several ambulances are on standby.
A day earlier police arrested 250 people for staging an unauthorized protest in the Pushkinskaya Square. All of them had been released by Tuesday morning.
On March 6, security was also tightened near Lubyanskaya Square, near Bolshoi Theater, and Manezh Square. Parking has been restricted on Triumfalnaya Square near the Mayakovskaya subway station.
