One was seriously injured after a suspected attempted murder

The alarm about the incident, which should have occurred in a warehouse in Norrtälje municipality, was received at 21 o'clock on Monday evening.

"It was initiated by the fact that there was a dispute with at least four people involved," says Antoni Ballarin, on-duty investigative officer at the Norrtälje police.

An injured man was found at the scene in his 30s.

- He was taken to hospital with what we considered to be serious injuries, but what we heard later should not be life-threatening, says Antoni Ballarin.

A woman and two men could be arrested and later arrested on suspicion of attempted murder. They should be between 20 and 35 years old.

"They are suspected of the crime of attempted murder, but there will be continued hearings during the day," says Antoni Ballarin.

The police cannot go into what kind of injuries the man should have inflicted or if any attachment should have been used, but says that "some seizures" were made at the scene.