Oslo explosion - live coverageAn explosion has damaged government buildings in Oslo with injuries reported. The cause of the blast has yet to be ascertained.
Smoke is seen billowing from a damaged building as debris is strewn across the street after an explosion in Oslo.
5.48pm: In central Oslo, the train station has been evacuated as well as the headquarters of broadcaster TV2 because of suspicious packages.
5.47pm: Anti-terrorism police are being sent to Utoya where the Labour party youth camp has come under fire, the BBC is reporting. NRK says five people have been injured.
Andrew Boyle, a journalist in Norway, has sent me the following:
There are 700 people on the island camp. At 5.20 pm ambulance personel were told not to proceed out to the island because there was still shooting there. One Labour youth member tweeted: "We are sitting down by the beach. A man is shotting clothed in a police uniform. Help us! When are the police coming to help us!"
Police stormtroopers are about to land on Utoya island from helicopters. Shooting still going on. Eyewitness describes shooting from his position on the mainland: "There is a little war going on out there"
5.40pm: Police have confirmed the shooting incident, reports Reuters.
The news agency also quotes senior police officer, Thor Langli, saying the explosion that hit government buildings "may have been a car bomb".
5.31pm: Neil Perry has sent me more details of the shooting on the Labour party youth camp, which suggests the possibility of co-ordinated attacks. It is a Google translation from Dagbladet, tidied up a bit, so it is not perfect.
yewitnesses told the AP that a man dressed as a police officer has fired several shots at Utøya in Buskerud. AP spoke with one of those who were on Utoya where there is an AUF event with over 700 people.
"Suddenly, we heard lots of shooting. People had to run and hide. We have been told to get off the island."
"We now have reports of a serious situation there - a critical situation on Utøya," Prime Minister Jens Stoltenberg told TV 2
The police are now on site and sealed off the area. Bjorn Jarle Røberg-Larsen of Labor, is not in Utoya, but has had telephone contact with young people who are on the island.
"They say that at least one person wearing a police-like uniform was firing shots with a handgun," he said.
He says that the young people he talked to were hiding and dared not speak on the phone anymore for fear of being discovered by the perpetrator.
"Young people have to swim in panic, and it is far to the mainland from Utoya. Others are hiding. Those I spoke with did not want to talk more. They were terrified," he said to VG Nett.
5.16pm: Neil Perry in Oslo just sent me this worrying development. I'll try to get more details:
A man disguised as a police officer began shooting where youth were attending a Labour party conference at Utoya, Prime Minister Jens Stoltenberg has just confirmed.
He said there is a 'critical and serious situation' but he is safe.
He was speaking on the phone to Norwegian TV station TV2.
UPDATE: This post was amended as Stoltenberg was not present at the conference as previously stated. He had been due to attend it but did not go.
5.11pm: Police are now saying 15 people are confirmed injured, says the BBC.
They are telling people to leave the centre of Oslo and warning there could be more explosions.
They are also examining an unexploded package, although the location of the package is not clear.
4.57pm: You can watch the live coverage from state broadcaster NRK here (it is in Norwegian). (via my colleague Laura Oliver)
4.56pm: The official police statement says:
There has been one or several powerful explosions in the government district in Oslo. So far, police cannot say anything about the scope of the damage, aside from that there's been one or several explosions.