The 32-year-old suspected of massacring at least 84 young people at a summer camp and setting off a bomb in downtown Oslo that killed at least seven is a mystery to investigators: a right-winger with anti-Muslim views but no known links to hardcore extremists.

"He just came out of nowhere," a police official told Associated Press.

Public broadcaster NRK and several other Norwegian media identified the suspected attacker as Anders Behring Breivik, a blond and blue-eyed Norwegian who expressed right-wing and anti-Muslim views on the Internet.

Norwegian news agency NTB said Breivik legally owned several firearms and belonged to a gun club. He ran an agricultural firm growing vegetables, an enterprise that could have helped him secure large amounts of fertiliser, a potential ingredient in bombs.



Norwegian police have described the man as a Christian fundamentalist.