- The man was taken to hospital by ambulance but was awake and talkative. He had received a wound in the neck, says Björn Öberg, the police's spokesperson.
The police have cordoned off an area in Tomtaklint in Trosa and will carry out a technical investigation during the evening.
The young woman was arrested by police in Vagnhärad shortly after the suspected murder attempt.
What was behind the incident is currently unclear.