A silent protest has been held in London this afternoon for Kieron Bryan, from North Devon.
The video journalist is being held in Russia in connection with a Greenpeace protest.
He was filming on board the Arctic Sunrise when the boat was involved in a protest over drilling back in September.
He's being held in prison while he awaits trial for hooliganism.
A petition of 15,000 signatures has been handed into the Russian Embassy calling for his release.
Kieron's family were in London to support the protest. They want him released immediately and have held a silent protest outside the Russian Embassy this afternoon: