Jail isolation left Norwegian mass killer Breivik in 'deep depression' - lawyer

Mass killer Anders Behring Breivik (C) is escorted by prison guards as he arrives at the court room in Skien prison, Norway March 15, 2016. REUTERS/Gwladys Fouche/File Photo

TYRISTRAND, Norway (Reuters) - Lawyers for Norwegian mass killer Anders Behring Breivik told a court on Monday he was suffering from "deep depression" and no longer wanted to live as they launched a legal bid to lift his years of isolation in prison.

The far-right fanatic who killed 77 people in a bombing and shooting rampage in 2011 is suing the state, arguing that his prison conditions violate his human rights.