At 20.40 the first alarm came from a ferry in Helsingborg that had seen an empty boat in the sea. The police and rescue services were dispatched to the scene.

"There are four people who have been taken by ambulance from the scene," says Lucas Hettman, team leader SOS Alarm.

It was one of the accidentists who had swum and taken himself up to the harbor and called. Another person got up on his own and the other two got caught in the water.

Everyone on board has been taken care of. What caused the boat to sink is still unknown.

- The people had some angel guard. It's only seven degrees warm in the water, says Lars Nilsson, assistant rescue officer at the Maritime and Air Rescue Center.