Shortly after three o'clock at night, three people were arrested in Strängnäs. One woman and two men, all in their 30s.
According to police, a number of people in central Strängnäs had been checked during the night - and it was in connection with what a dog patrol found a "firearm-like object" at a bush. The three arrested were at the scene when the discovery was made and are now suspected of serious weapons crime.