An object that was placed beside an outer door to a row house in Norsborg has exploded. The door has sustained extensive damage.
No one has been reported injured so far.
A comprehensive police operation is underway in Botkyrka. The crime scene has been cordoned off and a search is underway for the perpetrators. A tracking dog is being used and a number of person checks are being carried out in the southern parts of the county.
A criminal investigation has been launched with a charge of gross public destruction.