Norwegian Prime Minsiter Jens Stoltenberg (C) is flanked by an unidentified doctor during a press briefing early on July 23, 2011 at the Ulleval University hospital in Olso. Norwegian Prime Minister Jens Stoltenberg on Saturday declared the twin shooting and bomb attacks which killed at least 91 people "a national tragedy." "Never since the Second World War has our country been hit by a crime on this scale," Stoltenberg told a press conference. AFP PHOTO / SCANPIX - Aleksander Andersen == NORWAY OUT