The alarm came in at 03.43 from a witness to the quarrel, which took place at Majornas Grafiska, Första Långgatan.

When the police arrive at the scene, they find a man with a knife who is bleeding profusely from one leg.

The man has no pulse when the police arrive at the scene and cardiopulmonary resuscitation is started.

The suspected perpetrator, who is 55 years old, is said to have disappeared from the scene on a bicycle.

- We receive information from several people at the scene about the perpetrator.

After several reconnaissance efforts, they manage to arrest him, says Thomas Fuxborg, press spokesperson for the police region West.

The motive is still unclear.

The injured man is being cared for in hospital and is said to be seriously injured.

The text is updated.