An assailant who shot dead at least 84 people at a youth camp of Norway's ruling party turned a "youth paradise into a hell", Norwegian Prime Minister Jens Stoltenberg said on Saturday.
"Many of those who lost their lives were persons I know. I know the young people and I know their parents," he told a news conference.
"And what hurts more is that this place where I have been every summer since 1979, and where I have experienced joy, commitment and security, has been hit by brutal violence -- a youth paradise has been transformed into a hell."
"What happened at Utoeya is a national tragedy," he said of the small wooded holiday island that was hosting the annual camp for the Labor Party's youth wing. "Not since World War II has our country seen a greater crime."