At least 10 Norwegian reported killed by a gunman wearing police uniform hours after a massive bomb struck the heart of Oslo claiming yet another seven lives and scores of injured.
The number of causalities is likely to go higher as a massive search and rescue operation is being conducted by the Police Commandoes and other law enforcing agencies of Norway.
The incident took place on the tiny island of Utoeya as victims were attending a youth camp organized by the ruling Labour Party on an island west of the capital.
Official report say a gunman wearing police uniform opened fire on campers on the tiny island of Utoeya, and law enforcing agencies arrested a 33 years man responsible for causing a havoc among campers of the ruling party Labour.
TV aerial images showed police commandos arriving in boats as survivors tried to swim to shore.