The police were alerted at 00.49 during the night to Sunday about an explosion.
The explosion was powerful enough to blow out the car from the inside, said Morten Gunneng, duty officer at police region West, during the night.
Another car in the parking lot was vandalized at the same time, that car was vandalized with a stone.
No people were injured. During the night, the police's technicians have investigated the scene.
The technical investigation is now complete, and the bomb squad has been on site. The blockades have been lifted, says Adam Isaksson Samara, press spokesperson at police region West.
Whether there is any connection between the owners of the two cars, he cannot say, nor anything about the possible motive. But the police have spoken with the owners of the cars.
We carefully check connections to other events and conflict environments. We put a lot of focus on that.
He says that several people have been interviewed, and that even more will be heard.
A number of investigative measures have been implemented, and more will be done.
Now the police are investigating the incident as general reckless destruction and a crime against the law on flammable and explosive goods.
– We are not drawing any conclusions yet. We are putting together a large puzzle, we have a big focus on this now. At this stage, we will analyze the results that have come, says Adam Isaksson Samara.