An independent panel investigating how Norwegian authorities dealt with the twin attacks that killed 77 people in July 2011 said the Oslo blast could have been prevented and the killer arrested sooner. “The attack on the government complex on 22 July could have been prevented through effective implementation of already adopted security measures,” the commission said in a report submitted to Prime Minister Jens Stoltenberg. “The perpetrator (Anders Behring Breivik) could have been stopped earlier on 22 July,” it said. “The authorities’ ability to protect the people on Utoeya island failed. A more rapid police operation was a realistic possibility,” it concluded in reference to the second attack. On July 22, 2011, Breivik set off a car bomb outside government buildings in Oslo, killing eight people, before going to Utoeya, northwest of the capital, where he spent more than an hour gunning down another 69 people, mostly teenagers, and wounding others. The victims, the youngest of whom had just celebrated her 14th birthday, had been attending a summer camp hosted by the governing Labour Party’s youth organisation. The Norwegian police have been harshly criticised for its slow response to the tragedy: more than three hours passed between the Oslo bombing and Breivik’s arrest on Utoeya, even though his name was already known to Norway’s security services. The Utoeya shooting lasted about an hour and fifteen minutes, as police struggled to find transport to the small island located on a lake, just 600 metres (660 yards) from shore.