Trial: Police Say Killer Breivik Acted Alone

Police have told the trial of mass killer Anders Behring Breivik they are confident he acted alone when he carried out his terror attacks.

Three officers said they found no proof of anyone else being involved in Breivik's plans or helping him with the bombing in Oslo and the shooting spree at a youth camp on Utoya island.

Chief investigator Kenneth Wilberg said police were sure of their findings and they found no evidence of a right-wing Knights Templar network with aims to deport Muslims from Europe.

Breivik claimed to belong to the alleged group, which he said was established in London in 2002 to protect Europe from multiculturalism and a pending "Muslim invasion".

But Mr Wilberg said: "Police have not found evidence that the Knights Templar exists in the shape suggested by the accused."

The trial is also expected to hear about how he raised funds to carry out his attacks.

The 33-year-old has admitted responsibility for the bomb blast that killed eight people in the Norwegian capital and shooting dead 69 people on Utoya last July.

But he has denied criminal guilt, saying the victims had betrayed their country by embracing immigration.

His mental state is the key issue to be resolved during the trial in Oslo.

If found guilty and criminally sane, he would face 21 years in prison, though he could be held longer if deemed dangerous to society.

If declared insane, he would be sent to a psychiatric facility.

At the trial on Tuesday, Breivik's best friends said they thought he was either depressed or gay when he stopped seeing them in 2006 - five years before he killed 77 people.