Alex Harris from Devon, Anthony Perrett from Newport and London journalist Keiron Bryan are the first of six Brits to be given bail.
Russian cosmonauts made history today by taking the torch for the Sochi Winter Olympics into open space for the first time in history.
The Russian forces appear to have a taste for singing, with the police singing Daft Punk's Get Lucky after the army's Adele cover.
Greenpeace has welcomed the release of activist Anthony Perrett describing it as "a wonderful moment for Anthony and his family and friends."
But Greenpeace International Arctic campaigner Ben Ayliffe warned that the ordeal will only be over when all of the so-called Arctic 30 can go home.
– Ben Ayliffe, Greenpeace campaigner
"For now, we are allowing ourselves a sigh of relief, all the time remembering that those brave men and women are still charged with a crime they didn't commit, and of course our friend Colin Russell was refused bail.
"The detainees who were released yesterday slept well last night, though some of them stayed up late talking and talking, sharing experiences.
"They've been enjoying the taste of good food and the feel of thick mattresses, but they keep talking about Colin, asking when he'll be out, and they don't yet know if they can go back home or if they'll have to stay in St Petersburg."
Anthony Perrett, one of the British Greenpeace Arctic activists arrested by Russian authorities, has been released from prison in St Petersburg - the first Briton to be freed on bail, the campaigners said.
Russian president Vladimir Putin criticised the Greenpeace activist arrested two months ago during a protest against drilling in the Arctic. He said they put others in danger, distracting the platform operators from their work.
"When someone is climbing on the platform creating an emergency situation, the operators can make more than one mistake. It diverts them from their work," Putin said.
He linked the protest with the 1988 Piper Alpha disaster, the world's worst offshore oil tragedy that killed 167 people.
"An operator made a mistake which resulted into fire. 167 people died. All the crew. Because of the operator's mistake," he said.
British Greenpeace activist Iain Rogers has been granted bail by Russian authorities, following a protest against drilling in the Arctic.
BREAKING: Iain Rogers from the UK is granted bail! Fifth today. #FreeTheArctic30
Briton Frank Hewetson and Ruslan Yakushev from Ukraine arrested by the Russian authorities during a Greenpeace protest against drilling in the Arctic have been granted bail.
BREAKING: Frank Hewetson of the UK is granted bail! #FreeTheArctic30
BREAKING: Ruslan Yakushev of the Ukraine is granted bail! #FreeTheArctic30
Activists from campaign group Greenpeace have taken to the headquarters of energy firm Shell and Gazprom Energy in London, to protest against drilling in the Arctic.
The group unveiled giant portraits of the 28 activists and two journalists detained in Russia as three British protesters were granted bail by authorities.
The bailed British Greenpeace activists have not been told whether they can leave Russia under the conditions of their bail agreement, a Greenpeace spokesperson said.
- 18 activists have been granted bail
- 1, Ana Paula Maciel, from Brazil, has been released from jail
- 11 are waiting for their hearing
- 1 activist will appeal
Welsh Greenpeace activist Anthony Perrett has been granted bail by a Russian court, two months after being arrested during a protest against drilling in the Arctic.
Anthony Perrett became the third Briton granted bail today, following similar decisions for activist Alex Harris and freelance journalist Kieron Bryan.
Three other British citizens will have their bail hearings later this week. They were among the 30 people arrested by the Russian authorities in September.
Greenpeacehas posted bail for at least nine of the activists detained, the group said.
Thebail payment is set at 2 million Rubles (£40,000) foreach detainee.
Journalist Kieron Bryan and Greenpeace activist Alex Harris were granted bail in a Russian court this morning.
They've spent two months in jail following a protest at a Russian oil rig in September.
The group were originally charged with piracy, but the charges were later downgraded to hooliganism as part of an organised group, which carries a maximum sentence of seven years in prison.
Iain Rogers, who's also from Devon, will find out later if he too will be bailed.
Alex's parents, Cliff and Lynn Harris, were thrilled to hear the court's decision.