The death toll in the gunfire at an island youth camp in Norway and the bombing in the capital Oslo has risen to 91. Police say, at least 84 people died when the gunman opened fire at the youth camp organised by the ruling Labour Party on Utoeya island, hours after a deadly bombing killed 7 in the capital on Friday. The search for other possible victims continues at water points at Utoeya. The 32 year old gunman dressed as a police officer was arrested on tiny Utoeya island after an hour-long shooting spree. Police have charged the Norwegian man for both attacks. The suspect is reported by local media to have had links with right-wing extremists. He has been named as Anders Behring Breivik. Police searched his Oslo apartment overnight. Police say they are investigating whether the attacks were the work of one man or whether he had help. Describing it as a national tragedy, Prime Minister Jens Stoltenberg said civil servants were among the dead in Oslo and he knew some of those killed. He said it is too early too comment on a possible motive for the attacks. No group has claimed responsibility to the attack. Terming the attack a nightmare, Stoltenberg told a news conference in Oslo that never since the Second World War has Norway been hit by a crime on this scale. He said he was due to have been on Utoeya, a youth paradise turned into a hell. Eyewitnesses described how a tall, blond man dressed as a policeman opened fire indiscriminately, prompting camp attendees to jump into the water to try and escape the hail of bullets. Some of the teenagers were shot at as they tried to swim to safety. Police say they discovered many more victims after searching the area around the island. In Oslo, government officials urged people to stay at home and avoid central areas of the city. Shreds of twisted metal, rubble and glass littered the streets of central Oslo left devastated by Friday's enormous explosion. Windows in the buildings of the government quarter were shattered and witnesses described how smoke filled the atmosphere around the blast site. There are also concerns that more victims may still be inside buildings hit by the initial massive explosion.