Activists from environmental group Greenpeace have been moved to pre-trial detention centres in and around Russia\'s far northern city of Murmansk after being questioned over their open-sea protest, the group said Wednesday. \"They have been transferred to pre-trial detention centres,\" Yevgenia Belyakova, a Greenpeace activist in Murmansk, told AFP, adding the 30 Russian and foreign activists have been taken to jails in and around Murmansk after being questioned Tuesday night.