Bomb strikes Norway's capital

In this image taken from video, smoke is seen billowing from a damaged building as debris is strewn across the street after an explosion in Oslo, Norway on Friday, July 22, 2011. A loud explosion shattered windows at the government's headquarters, which includes the prime minister's office. Government spokeswoman Camilla Ryste told The Associated Press that Prime Minister Jens Stoltenberg is safe, although it was unclear whether that meant he was uninjured.

The scene after an explosion in Oslo, Norway, Friday July 22, 2011. At least two people were killed and several injured by the blast, which police confirmed was a bomb.

People are treated at the scene after an explosion in Oslo, Norway, Friday July 22, 2011.

Views of the scene of an explosion in Oslo Friday, July 22, 2001. Witnesses said the sound of the explosion could be heard five kilometers away.

Views of the scene of an explosion in Oslo Friday, July 22, 2001.

A woman walks through debris in a street following an explosion in Oslo, Norway Friday July 22, 2011.

Shattered windows of a major building after an explosion in Oslo, Norway, July 22, 2011.

Emergency workers attend the scene as the building burns after a powerful explosion tore open several buildings in Oslo, Norway, Friday, July 22, 2011.

Smoke rises from buildings in Oslo, Norway, at the scene of a large explosion which tore apart several buildings Friday July 22, 2011.

A detail of the devastation caused to a building in Oslo, Norway, after a powerful blast tore open several buildings, Friday July 22, 2011.

Police evacuate a wounded woman after an explosion near government buildings in Olso on July 22, 2011.

People are treated at the scene after an explosion near the government buildings in Norway's capital Oslo on July 22, 2011.

People make phone calls as they stand near a burning government building in Olso on July 22, 2011.

A damaged building in Oslo after a bomb exploded near government buildings July 22, 2011. Witnesses said the blast could be heard miles away.

The wreckage of a car lies outside a building in the center of Oslo, Friday July 22, 2010, following an explosion that tore open several buildings including the prime minister's office, shattering windows and covering the street with documents.

An injured woman is assisted from a damaged building in Oslo, Friday, July 22, 2011, after an explosion rocked the capital.

An injured woman is helped by a passerby, following an explosion in Oslo, Norway, Friday, July 22, 2011.

Blood smears the pavement, as a victim is treated outside government buildings in the center of Oslo Friday, July 22, 2011.