A rental car used by the Norwegian man charged with last week's attacks that claimed 76 lives in Norway were an important early lead for police, daily Aftenposten said Wednesday, dpa reported.
Anders Behring Breivik was remanded in custody Monday, for eight weeks, and is to undergo a psychiatric evaluation. He is charged with setting off a car bomb in central Oslo on Friday that killed eight people, and shooting 68 people dead at a Labour Party youth camp on Utoya island.
Security camera footage of a vehicle used in the car bomb near the central government offices helped police trace the vehicle to a rental firm that provided the name of the person who rented the car, Aftenposten said.
Breivik used a second car from the same rental firm to drive from Oslo the island of Utoya, the scene of the shooting spree.
He was arrested Friday evening on the island in possession of two guns and a large amount of ammunition, police said.
A shooting club in Oslo has confirmed that Breivik was a member from 2005 to 2007, and again since June 2010. He attended 13 organized practice sessions but had not acted in a manner that raised suspicions about his political views, the club said in a statement.
Police late Tuesday detonated explosives at Breivik's farm about 160 kilometres north of Oslo, but did not detail what kind of explosives they were.
Late Tuesday a ceremony that gathered several thousand people was held on the mainland across from Utoya island in memory of the victims.