87 victims in Oslo

The man in the police uniform shouted for the campers to come closer. When they did, he killed them.

The gunman who killed at least 80 people at an island youth camp northwest of Oslo used his disguise to lure in his victims, then shot them twice to make sure they were dead, survivors said in the village of Sundvollen, where they were taken after the massacre.

"I saw many dead people," said 15-year old Elise, whose father, Vidar Myhre, didn't want her to disclose her last name. She just feet away from the gunman when he opened fire in the camp on Utoya Island.

Survivors described a scene of sheer terror at the camp, which is organized by the youth wing of Norway's ruling Labor party. Hundreds of young people were eagerly awaiting a speech the prime minister was to give there Saturday.

Police said the man arrested in the shooting is Norwegian and had set off a bomb that killed seven people outside the prime minister's headquarters in Oslo, about 20 miles (35 kilometers) from the camp.