Norway's Twin Attacks, July 22, 2011

A Norwegian flag sticks out of a bunch of red roses placed on the market square outside the Oslo cathedral to mourn the victims of a bomb blast in the capital and a rampage on an island in the countryside, July 23, 2011. (Reuters)

The flags of Scandinavian countries fly at half-staff in front of the Scandinavian and Nordic Embassies' building in Berlin, Germany. (AP)

A man puts a flower tribute at the entrance in front of the Embassy of Norway in Moscow, Russia, in memory of the explosion's and shooting's victims. (AP)

Prime Minister Jens Stoltenberg (C) hugs a man as he comforts survivors and family members at a hotel in Sundvollen, northwest of Oslo. (Reuters)

Survivors react as Norwegian King Harald and Queen Sonja (not seen) arrive to comfort them outside a hotel in Sundvollen, northwest of Oslo, July 23, 2011. (Reuters)

Aerial view of Utøya Island, where the suspected gunman shot and killed at least 84 people. (AP)

Covered corpses on the shore of the small, wooded island of Utøya, July 23, 2011. (Reuters)

Rescue workers set up a camp opposite Utøya island, July 23, 2011. (Reuters)

A wounded woman is brought ashore opposite Utøya island after being rescued from a gunman who went on a killing rampage, targeting participants in a Norwegian Labor Party youth organization event on the island, some 40 km southwest of Oslo, July 22 , 2011

Rescue workers work at the scene of a powerful explosion in central Oslo. (Reuters)

Rescue workers at the site of a powerful explosion rocked central Oslo. (Reuters/Berit Roald/Scanpix)

An injured woman is helped by a man at the scene of a powerful explosion in central Oslo. (Reuters/Berit Roald/Scanpix)

Aftermath of a blast on a street in Oslo. (Reuters)

The wreckage of a car lies outside government buildings in the center of Oslo, following an explosion that tore open several buildings including the prime minister's office. (AP)

A young victim is helped in central Oslo, July 22, 2011, after a bomb blast that tore open several buildings including the prime minister's office, shattering windows and covering the street with documents. (AP)

Norwegian police say a gunman shot and killed at least 68 youths at a summer camp on Utøya island, in the normally peaceful Nordic nation, hours after a bomb blast killed seven people in the capital, Oslo. Prime Minister Jens Stoltenberg calls the assaults - the worst in Norway since World War II - "a national tragedy. It is a nightmare."