Explosion in central Oslo

As of right now 6:10 PM/18:10 Norwegian time, no one has taken the responsibility for the attack. The police says that they have no motive and have no theories about whom may be responsible for the attack. They currently have no leads either. Terrorist-experts says that they would be surprised if this is not a terrorist attack. The police is currently evacuating other places (news channels, such as TV2) geographically long away from the explosion. Based on the size of the explosion and what bomb experts say, there may be a vehicle involved, but not confirmed. If so, the size of vehicle must be a van. The police recommends people to get away from Oslo central and to avoid big assemblies.

There has also been confirmed reports about multiple shots in a summer camp for the second largest political party (AP) - where 560 people is assembled.

Edit: Police considers this as an ongoing event.