The police are contacted during the night before Saturday about a suspected mugging in central Kiruna.
A man is said to have been assaulted and robbed of personal belongings. There are no reports that the man needed acute medical care.
The police are investigating the incident as a serious robbery and serious assault and arrested two men in their 25- and 30-year-olds later on Saturday.
The people involved are not unknown to each other.
After questioning, the prosecutor has decided that the men should be detained.