Updated

Russia's top investigative agency has accused opposition supporters of attending training abroad as part of foreign-backed plans to overthrow the government.

Investigative Committee spokesman Vladimir Markin said Friday the agency had gathered new evidence confirming earlier allegations that leftist activists Sergey Udaltsov, Leonid Razvozzhayev, and Konstantin Lebedev had met with foreign officials to plot mass riots, inspired by the "color revolutions" that ousted authoritarian leaders in several ex-Soviet nations.

He said their supporters attended special training abroad.

Charges were filed against the activists in October after pro-Kremlin TV showed a documentary-style film alleging they met officials from Georgia in Minsk to plot violent disturbances across Russia. Razvozzhayev retracted an initial confession, saying that he had been kidnapped and tortured. He and the other two activists deny all charges.