(REUTERS) - A memorial ceremony was held in Utoya on Wednesday (July 22) remembering those who were killed four years ago when Anders Behring Breivik went on a shooting rampage on the island.
On July 22, 2011, Breivik, now age 36 and in prison, detonated a bomb in a government building in central Oslo, killing his first eight victims, and then traveled to Utoya island, around 40km from Oslo, and shot dead 69 people.
It was the worst massacre Norway had seen since World War Two. Many of the 69 people killed on Utoya island were teenagers attending a summer camp organized by the then-ruling Labor Party's youth wing.
Breivik, a right-wing anti-Muslim radical who accused Labor of allowing too much immigration, is serving a 21-year prison term, Norway's maximum sentence. It can be extended if he is judged to be a threat at the end.