The woman, in her 25s, was shot dead at a bathing spot in the area on Friday night.

Witnesses heard several shots.

A man has been arrested on suspicion of murder.

- I felt nauseous when I found out what happened.

I did not think such a thing could happen here, says an anonymous witness to SVT Nyheter Norrbotten.

The police state that intensive investigative work is in progress.

A man in his 30s has been arrested.

Hear the witnesses in the video above.