The man is suspected of severe assault.
Under the morning, the police are ordered to an address in Vännäs due to an assault.
A man is suspected of having assaulted two people, a man and a woman. There is currently no information about whether there was a need for medical care.
The police have arrested the 25-year-old man. He is suspected of gross assault and assault. After questioning, the prosecutor will decide whether he should be detained.