At 10.40 p.m., several calls came to the police about explosions in a residential area in Sävja, which Upsala new newspaper be the first to tell.
– A police operation was launched with several police resources. A crime scene could then be located and also confirmed shooting, say the police.
At 2:30 a.m. no one had been arrested and no one was reported injured.
A preliminary investigation into attempted murder and serious weapons crime has been initiated.