The 2011 Norway attacks were two sequential terrorist attacks against the government, the civilian population and a summer camp in Norway on 22 July 2011. The first was a car bomb explosion in Oslo within Regjeringskvartalet, the executive government quarter of Norway, The second attack occurred less than two hours later at a summer camp on the island of Ut¿ya. This was one the most horrific events in the country's history. Norway mourns the massacre victims and have made makeshift memorials including this one at Oslo Cathedral.