Russian authorities have told a group of Greenpeace activists and journalists, which includes an environmental campaigner from Oxford, that they cannot leave the country while on bail for protesting against drilling in the Arctic.
Phil Ball, from Chipping Norton, was one of 30 people to be arrested back in September during the protests.
The group, known as the Arctic 30, have all been granted bail but have stayed in Russia as efforts to give them permission to leave are made.
Greenpeace revealed that Russia's Investigative Committee has written to one of the 30 indicating they are not free to leave the country.
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