Police in Norway say seven people are known to have died in a huge explosion that ripped through central Oslo on Friday afternoon. They believe it was caused by a bomb.
The blast caused widespread damage and caused several injuries.
Later a gunman went on the rampage on the island of Utoya near Oslo, where youth members of the ruling Labour party had been holding their summer gathering.
There are reports of casualties although police have not confirmed whether there were any deaths. It is thought that hundreds of young people were camping on the island, a summer hideout. Reports spoke of teenagers cowering in a school building as gunfire raged outside.
A man has been arrested in connection with the shooting and it seems the gunfire has ended.
Police said they believed the two attacks were linked.
The bomb explosion in central Oslo in mid-afternoon rocked government buildings including the Prime Minister Jens Stoltenberg’s office. He was not there and is safe.
The prime minister has spoken and said that all cabinet ministers in the centre-left coalition government also seemed to be safe.
The tangled wreckage of a car was visible outside one building.
Oslo lies to the south of Norway and the explosion happened in the heart of the city of half a million people.
Buildings have been left in a perilous state while its reported that many of the injuries were caused by flying glass.
The blast blew out most windows on the 17-storey building housing the prime minister’s office, as well as nearby ministries including the oil ministry, which was on fire.
No group has claimed responsibility. Suspicion has fallen on extreme Muslim groups, the far right or lone individuals, but there is no evidence at this stage.
Norway is a member of NATO and has been threatened over its involvement in Afghanistan.
Norway reels after dual bomb and shooting attacks