Anders Behring Breivik, the man responsible for the attacks that killed 77 people in Norway, is cooperating with interrogators, police said Saturday.  Police did not confirm media reports that Breivik had plans to attack the royal palace and Labor Party Headquarters.

Breivik, a self-described "anti-Islam crusader," confessed to the July 22 Oslo bombing and a shooting spree on a youth camp on a nearby island, the worse attack in Norway since World War Two.

Police said that Berivik was interrogated for 10 hours Friday.  "He explains himself well and is more than willing to talk about the events," police attorney Paal-Fredrik Hjort Kraby said in a news conference Saturday.

Newspaper Verden Gang reported that Breivik also planned attacks on the palace and Labour headquarters.

In a 1500-page manifesto, Breivik said that the attacks were necessary in order to spark a war that would rid Europe of Muslim immigrants.  It remains unclear whether Breivik was mentally ill or if he simply felt that he was a martyr.

His anti-immigrant ideas are said to be consistent with increasing xenophobia in Europe.

Though most Europeans consider his methods abominable, his anti-immigrant ideas, while extreme, are in tune with a growing current of xenophobia in Europe.

Norway buried its first two victims Friday.