Norwegian far-right extremist Anders Behring Breivik, who killed 77 people in a bombing and shooting rampage in 2011, has made another application for parole after spending more than a decade behind bars.

Anders Behring Breivik, the Norwegian mass murderer behind the country's worst peacetime atrocity, should not be released and remains dangerous, a prosecutor said, as Breivik appeared in court on Tuesday seeking release after over 13 years in prison.

It will be Breivik's second attempt at parole. He is serving 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. Breivik became eligible to seek parole after serving the first ten years of his term.