Dozens of people were detained by police in Moscow on Saturday after gay rights activists and their opponents clashed at another attempt to hold a gay pride parade.
After years of being refused permission, the activists had hoped that new Mayor Sergei Sobyanin would allow parades.
However, they were attacked as soon as they raised rainbow flags and posters near the Kremlin walls.
Police swiftly intervened.
Another incident occurred near the Moscow government buildings. It was broken up by police after about 20 minutes.
Russian news agencies said about 40 people had been detained.
Homosexuality was decriminalised in Russia in 1993. But there is still deep prejudice.
In October, the European Court of Human Rights fined Russia for banning homosexual parades in Moscow.