Norwegian mass murderer Anders Breivik denied parole

In the Nordic country's worst peacetime atrocity, the anti-Muslim neo-Nazi on July 22, 2011 killed eight people with a car bomb in Oslo and then gunned down 69, most of them teenagers, at a Labour Party youth camp on Utoeya island.

The court heard Breivik's petition for parole, his second, in November. During that hearing, he said the attacks had been "necessary".

The 45-year-old has served 13 years of a 21-year sentence, the maximum penalty at the time of his crimes, which can be extended for as long as he is deemed a threat to society.

He can apply for parole a year after each rejection.