FILE PHOTO: Norwegian mass killer Anders Behring Breivik arrives to hear the verdict in his trial at a courtroom in Oslo August 24, 2012. REUTERS/Stoyan Nenov/File Photo
OSLO (Reuters) -Anders Behring Breivik, the far-right fanatic who killed 77 people in twin attacks in Norway in 2011, remains "very dangerous" and should be kept in isolation in prison, a court heard on Friday.
The 44-year-old is suing the Norwegian state in a bid to end his years of isolation in prison and lift restrictions on his correspondence with the outside world. The five-day hearing ends on Friday.
