It is unclear what caused the quarrel in central Eksjö, but those involved must have known each other before, according to jp.se.
The injured man is currently being treated in hospital for his injuries.
However, it is unclear how badly injured he is.
- But it should not be life-threatening.
We have been able to talk to him, says Petter Gustavii, internal officer at the police.
At 9.30 pm, a man suspected of attempted murder was arrested.
- Our technicians are ready on site and the roadblocks are in place, says Petter Gustavii.