The alarm came at half past noon during Christmas Day. A private person calls SOS and says that it burns in a pizzeria. After a quick call, the fire could be extinguished before it developed very much.

Police say, however, that the patrol who came to the scene immediately could see that what was ignited was outside the door of the pizzeria. "A box to the premises is broken and probably someone has poured some kind of combustible liquid and then turned on, the police write on their website.

The incident is now being investigated as an arson fire, but no one had been arrested during the morning for the fire.