OSLO, Norway - Police in Oslo are setting up a special unit to investigate the twin attacks that killed 77 people.

Anders Behring Breivik has confessed to setting off a bomb in the capital and to a massacre at an island youth camp. But, many unanswered questions remain, including how Breivik financed the attacks and with whom he was in contact.

Breivik has claimed to belong to a shadowy group of modern-day crusaders against Islam, with cells all over Europe.

Police attorney Paal-Fredrik Hjort Kraby said Wednesday that police are particularly interested in any bank accounts Breivik may have opened.