Rocks were thrown at passenger cars.
Most conversations come in to the police's command center regarding a man who throws stones at cars stopped at a traffic light in central Gävle.
The police arrive quickly at the scene and see a person who matches the description provided by the public. The person, a man in his 30s, is detained and released after questioning. The man remains a suspect.
A report is filed regarding damage and the creation of a danger to another person.
No one is believed to have been injured in the incident, only material damage to vehicles.