Russian opposition leaders detained
Russian opposition leaders have been detained while protesting against what they say is the torture of a fellow activist.
Investigators earlier this week said that Leonid Razvozzhayev had turned himself in and confessed to plotting riots.
But days later the activist disavowed his confession and filed a complaint over what he said was his abduction from Ukraine.
Rights activists who visited him in jail say he had been tortured into confessing.
Police detained Alexei Navalny, Sergei Udaltsov and Ilya Yashin as they were standing outside the Russian former intelligence and former KGB headquarters, protesting against "torture and repression".
The three men were among hundreds of people gathered in central Moscow to protest against an increasingly relentless crackdown on the opposition in Russia.