Anders Breivik trial: Norway survivors to detail Utoeya massacre

The trial of Anders Behring Breivik is to hear the first testimony from survivors of the massacre he carried out on the Norwegian island of Utoeya, in which 69 people died last July.

The trial will also continue to hear evidence about coroners' autopsies on the victims of the youth camp attack.

Breivik admits killing a total of 77 people in the Utoeya attack and a bombing in Oslo, both on 22 July 2012.

But he denies criminal responsibility, saying he acted in self-defence.

Breivik says he was fighting to defend Norway from multiculturalism and immigration.

He claims that the Labour Party youth meeting at which he committed the massacre was a "legitimate target" because of its support for multiculturalism.

Among those testifying on Wednesday will be the leader of the Labour Party's youth wing, Tonje Brenna, 24, who survived by playing dead.

Some of the witnesses are expected to tell the court that Breivik laughed and shouted triumphantly as he went around the island shooting the victims, but Breivik denies this, according to Norwegian media reports.

Last Friday, the court began hearing coroners' reports on those killed at the Utoeya youth camp.

Of the 69 people who died on the small island, 67 were shot to death, one died in a fall and another drowned.

Coroner Torleiv Ole Rognum said the average age of the victims was 18.

Before the attack on Utoeya, Breivik carried out a car bomb attack on a government building in Oslo, in which eight people died.

The trial's outcome hinges on whether the court finds Breivik to have been sane or not, as it could determine whether he is sent to prison or to a psychiatric institution if found guilty.

An initial psychiatrists' report on Breivik declared him insane and not legally responsible, but a second evaluation came to the opposite conclusion.

Breivik seeks to prove he was sane, in order to prove his actions were motivated by a political doctrine.