Freed Greenpeace activist Alexandra Harris said her time in Russian prison "was torture", but that she and others jailed after Arctic protests were "treated better than the Russian prisoners, because the world's watching us".
"We spent two months inside a Russian jail cell and a hundred days detained for a crime we didn't commit," Harris said. "It was obscene, a complete overreaction on behalf of Russia and we should never have been there."
Russia releases all six of the Britons detained during a Greenpeace protest against oil drilling, days after dropping piracy charges.
Five of the six British people held in Russia over a Greenpeace protest against oil drilling in the Arctic are heading back to the UK.