0915 GMT: According to Norwegian newspaper Verdens Gang, the prosecutors finished writing up their closing speeches just before 1 am this morning.

Yesterday prosecutor Svein Holden said the closing arguments would last "between 2 and 4 hours". Defence lawyers will give their own summing up tomorrow.

0909 GMT: The doors open into Room 250 at the Oslo courthouse. Media and members of the public start to take their places for today's prosecution summing up in the trial of Anders Behring Breivik for mass murder.

WELCOME TO AFP'S LIVE REPORT as the prosecution sums up in the trial of Anders Behring Breivik over the killing of 77 people in twin attacks in Norway last July.

During the 10-week trial, Breivik described his massacre as a "preventive" attack to defend "ethnic Norwegians" and stressed he would not hesitate to do it again. He said spending his life in prison or dying for his people would be "the biggest honour."

If found sane, he risks a 21-year jail term, which could then be extended indefinitely if he is still considered a threat to society. If found insane he could be sentenced to closed psychiatric care, possibly for life.

Prosecutors Svein Holden and Inga Bejer Engh are to begin presenting their much-awaited closing arguments at 1000 GMT, when they will reveal whether they want the court to find Breivik responsible or not for his actions.