The last of the six Britons arrested by Russian authorities during a Greenpeace protest in the Arctic has been freed . Philip Ball from Oxford was granted bail last week but remained in detention before being released by a court in St Petersburg today. Only one of the 30 people arrested by the Russian authorities two months ago - Australian Colin Russell - remains in detention. Finally free: Philip Ball from Oxford was the final British Greenpeace activist to be released from jail in Russia . Relief: Mr Ball's brother, Steve, said they are thrilled he can now talk to his family and friends after two months . Greenpeace's Arctic Sunrise was seized by the Russian authorities, who arrested the 28 activists and two freelance journalists on board. The International Tribunal for the Law of the Sea, sitting in Hamburg, has ruled that the ship and those arrested should be released in return for a 3.6 million euro (£3 million) bond. The five Britons previously released were Anthony Perrett, from Newport in south Wales, freelance journalist Kieron Bryan, Alexandra Harris from Exeter, Iain Rogers from Devon, and Frank Hewetson from London. Mr Ball's brother, Steve, said: 'It's absolutely brilliant news. After two months in jail he could have done without another weekend behind bars, but it's a great relief to know he's finally out and able to talk to his friends and colleagues. Protest: Mr Ball wrote slogans on his hands, including 'Save the Arctic' during a court hearing . Protest: Mr Ball leaves the Kalininskiy Court in St Petersburg with 'Save The Arctic' sown onto his shirt . 'Our thoughts though are still with Colin's family. It's great to see people from the four corners of the world calling for his immediate release and I do hope he'll be able to join the other 29 soon.' Ben Ayliffe, of Greenpeace . International, said: 'This is news we've been waiting for all weekend, . but of course our hearts and thoughts remain with Colin Russell and his . family. 'Since being . reunited after their release, our friends in St Petersburg have swapped . stories, tears and experiences, hugged friends and each other and told . of their great resolve and commitment to defending the Arctic against . oil drilling and climate change. 'This is not over yet and none of us . will be truly happy until all of the Arctic 30 have been released from . detention and the charges against them dropped.' Freed: Greenpeace International activist Alexandra Harris is greeted as she leaves a jail after being freed on bail in St. Petersburg, Russia . Greenpeace . said it was not yet certain whether the released non-Russian nationals . can leave Russia and return home, while lawyers for Mr Russell are . lodging appeals against his continued detention and expect a hearing to . be held this week. Speaking . to Australian media, Colin's wife, Christine - who plans to travel to St . Petersburg with the couple's daughter, Madeleine, this week - has . appealed to Australian Prime Minister Tony Abbott to do more to help . secure her husband's release. She . said: 'I just think Colin would be so ashamed at the thought that our . prime minister and foreign affairs minister have not been able to take . five minutes... and pick up the phone and make direct representations.' The . tribunal last week ruled that 'the Russian Federation shall immediately . release the vessel Arctic Sunrise and all persons who have been . detained upon the posting of a bond or other financial security by the . Netherlands'. Released: Anthony Perrett, from Newport in South Wales, was arrested by Russian authorities during a Greenpeace protest in the Arctic - he was freed on bail after spending two months in detention . Relief: Videographer Kieron Bryan of Britain smiles as he is released on bail from prison in St. Petersburg last week . It also ordered Russia to allow the vessel and those detained to leave the country. After their release last week, Mr Bryan and Ms Harris told how tough . it had been when they were locked up after the Greenpeace vessel Arctic . Sunrise was boarded by Russian security forces during a protest against . oil drilling. Ms Harris revealed she was kept in a cell on her own after being taken to a prison in Murmansk. 'For the first week it was really harsh. It was nerve-wracking,' she told BBC News immediately after being released. Freed: Greenpeace International activist and the captain of the Greenpeace ship Arctic Sunrise Peter Willcox of the U.S., leaves gates after being released from 'Kresty' Crosses prison in St.Petersburg . 'I was in a cell on my own. You do get used to it, but it was tough.' Ms Harris said letters from supporters had kept her going. Mr . Perrett is a tree surgeon and director of a community interest company . which encourages and supports the use of renewable energy. He said the Arctic was where the battle to save the planet will be fought. Friends . said he went to the Arctic driven by his belief that there are ways to . live on this planet without destroying it. Before he left, he said he . was nervous but not afraid of going on the trip. The . 30 were arrested during a protest against drilling in the Arctic and . were initially held in Murmansk before being moved to St Petersburg. They were charged with piracy but the authorities said this would be changed to hooliganism. Greenpeace said the 30 had done nothing wrong, and the group has launched a worldwide campaign to have them freed. VIDEO: All smiles. British Greenpeace activist finally granted bail in Russia . Impounded: A crew member keeps watch aboard a coast guard boat, left, as the Greenpeace ship 'Arctic Sunrise', . right, is anchored next to it in a small bay near Severomorsk after . it was seized by Russian forces .
Philip Ball from Oxford was finally released on Monday from Russian prison .
Five other British protestors were freed on bail last week .
Australian Colin Russell remains only Arctic 30 protestor left behind bars .
Group were arrested two months ago during a protest against drilling .
UN-mandated tribunal has ordered Russia to release a Greenpeace ship and crew in return for a 3.6 million euro (£3 million) bond .
The last of the six Britons arrested by Russian authorities during a Greenpeace protest in the Arctic has been freed . Philip Ball from Oxford was granted bail last week but remained in detention before being released by a court in St Petersburg today. Only one of the 30 people arrested by the Russian authorities two months ago - Australian Colin Russell - remains in detention. Finally free: Philip Ball from Oxford was the final British Greenpeace activist to be released from jail in Russia . Relief: Mr Ball's brother, Steve, said they are thrilled he can now talk to his family and friends after two months . Greenpeace's Arctic Sunrise was seized by the Russian authorities, who arrested the 28 activists and two freelance journalists on board. The International Tribunal for the Law of the Sea, sitting in Hamburg, has ruled that the ship and those arrested should be released in return for a 3.6 million euro (£3 million) bond. The five Britons previously released were Anthony Perrett, from Newport in south Wales, freelance journalist Kieron Bryan, Alexandra Harris from Exeter, Iain Rogers from Devon, and Frank Hewetson from London. Mr Ball's brother, Steve, said: 'It's absolutely brilliant news. After two months in jail he could have done without another weekend behind bars, but it's a great relief to know he's finally out and able to talk to his friends and colleagues. Protest: Mr Ball wrote slogans on his hands, including 'Save the Arctic' during a court hearing . Protest: Mr Ball leaves the Kalininskiy Court in St Petersburg with 'Save The Arctic' sown onto his shirt . 'Our thoughts though are still with Colin's family. It's great to see people from the four corners of the world calling for his immediate release and I do hope he'll be able to join the other 29 soon.' Ben Ayliffe, of Greenpeace . International, said: 'This is news we've been waiting for all weekend, . but of course our hearts and thoughts remain with Colin Russell and his . family. 'Since being . reunited after their release, our friends in St Petersburg have swapped . stories, tears and experiences, hugged friends and each other and told . of their great resolve and commitment to defending the Arctic against . oil drilling and climate change. 'This is not over yet and none of us . will be truly happy until all of the Arctic 30 have been released from . detention and the charges against them dropped.' Freed: Greenpeace International activist Alexandra Harris is greeted as she leaves a jail after being freed on bail in St. Petersburg, Russia . Greenpeace . said it was not yet certain whether the released non-Russian nationals . can leave Russia and return home, while lawyers for Mr Russell are . lodging appeals against his continued detention and expect a hearing to . be held this week. Speaking . to Australian media, Colin's wife, Christine - who plans to travel to St . Petersburg with the couple's daughter, Madeleine, this week - has . appealed to Australian Prime Minister Tony Abbott to do more to help . secure her husband's release. She . said: 'I just think Colin would be so ashamed at the thought that our . prime minister and foreign affairs minister have not been able to take . five minutes... and pick up the phone and make direct representations.' The . tribunal last week ruled that 'the Russian Federation shall immediately . release the vessel Arctic Sunrise and all persons who have been . detained upon the posting of a bond or other financial security by the . Netherlands'. Released: Anthony Perrett, from Newport in South Wales, was arrested by Russian authorities during a Greenpeace protest in the Arctic - he was freed on bail after spending two months in detention . Relief: Videographer Kieron Bryan of Britain smiles as he is released on bail from prison in St. Petersburg last week . It also ordered Russia to allow the vessel and those detained to leave the country. After their release last week, Mr Bryan and Ms Harris told how tough . it had been when they were locked up after the Greenpeace vessel Arctic . Sunrise was boarded by Russian security forces during a protest against . oil drilling. Ms Harris revealed she was kept in a cell on her own after being taken to a prison in Murmansk. 'For the first week it was really harsh. It was nerve-wracking,' she told BBC News immediately after being released. Freed: Greenpeace International activist and the captain of the Greenpeace ship Arctic Sunrise Peter Willcox of the U.S., leaves gates after being released from 'Kresty' Crosses prison in St.Petersburg . 'I was in a cell on my own. You do get used to it, but it was tough.' Ms Harris said letters from supporters had kept her going. Mr . Perrett is a tree surgeon and director of a community interest company . which encourages and supports the use of renewable energy. He said the Arctic was where the battle to save the planet will be fought. Friends . said he went to the Arctic driven by his belief that there are ways to . live on this planet without destroying it. Before he left, he said he . was nervous but not afraid of going on the trip. The . 30 were arrested during a protest against drilling in the Arctic and . were initially held in Murmansk before being moved to St Petersburg. They were charged with piracy but the authorities said this would be changed to hooliganism. Greenpeace said the 30 had done nothing wrong, and the group has launched a worldwide campaign to have them freed. VIDEO: All smiles. British Greenpeace activist finally granted bail in Russia . Impounded: A crew member keeps watch aboard a coast guard boat, left, as the Greenpeace ship 'Arctic Sunrise', . right, is anchored next to it in a small bay near Severomorsk after . it was seized by Russian forces .
authorities during a Greenpeace protest in the Arctic has been freed . Philip Ball from Oxford arrested by the Russian authorities two months ago - Australian Colin Russell - remains in and those arrested should be released in return for a 3.6 million euro (£3 million) bond. The representations.' The . tribunal last week ruled Arctic - he was freed on bail after spending two ordered Russia to allow the vessel and those the trip. The . 30 were arrested during a protest against drilling in the Arctic and . were