ST. PETERSBURG, November 22. /ITAR-TASS/. British freelance videographer Kieron Bryan and crewmembers of Greenpeace’s Arctic Sunrise ship — Dutch citizen Mannes Ubels and Canadian Paul Douglas Ruzycki — have been released from St. Petersburg’s prisons following their September arrest for storming the Russian Arctic oil rig Prirazlomnaya, a source at the environmental campaign group told Itar-Tass on Friday.

Almost all protesters should be freed on bail of two million rubles for each activist, except for Colin Russell of Australia, who might remain in custody until February 24, 2014. However, Russell’s lawyers appealed the verdict in St. Petersburg’s court.

Seventeen activists have already left Russian prisons.

The protesters were detained on September 18 when trying to climb the Prirazlomnaya rig from aboard the Arctic Sunrise. Their ship was towed to the port of Murmansk in northern Russia. In October, the Russian Investigative Committee dropped piracy charges against the group, replacing alleged piracy with an accusation of hooliganism.