Two police cars have been torched in suspected arson attacks in Lyttelton overnight.
Firefighters were called to Lyttelton Police Station in Sumner Road at around 2.10am after a neighbour reported hearing an explosion and seeing flames at the station.
One marked patrol car has been written off and another has suffered heat damage, while the station's wall was also charred, forcing officers to use a ladder to clamber inside this morning.
Lyttelton Sergeant Gary Manch said a woman was located by police close to the scene shortly after the incident, and had been spoken to by investigators.
No arrests have been made at this stage, and enquiries are continuing.