Four men suffered gunshot wounds and three were taken to hospital. Sahlgrenska University Hospital has reported that the men are in stable, but serious condition.

Several witnesses told TT that a man took out a pistol and started shooting after a violent argument had escalated. Witnesses then saw the suspect shoot several bullets into the air before fleeing the scene.

A 20-year-old man received life-threatening injuries, while two others were seriously injured, press secretary Marianne Thulin at Sahlgrenska University Hospital told TT.

One witness watched the entire drama through a window. “I was lying down and resting and suddenly I heard someone who was angry and voices were raised,” the witness told TT.

“I got up and looked out the window and saw there were some men standing up and arguing,” the witness said. “Suddenly someone had a gun in their hand. It was hard to see if it was real but obviously it was. I was most shocked at first.”

A number of people were sitting on their balconies overlooking the street. Several women and a child were among the people at the ice cream cafe at the time of the shooting.