Police were called to a residence in central Örebro at 00:47 by the injured man, who is in his 30s.
“She was arrested under calm circumstances by the patrol and the man was taken to hospital, but the injuries are not expected to be life-threatening,” says Olga Korpela, officer on duty at the Bergslagen police region.
It is unclear what relationship the woman and the man have, but they must have known each other from before.
The woman is now suspected of serious assault and an interrogation and technical examination will be held on Monday.