Police are hunting two men seen leaving the area where a Northamptonshire Police patrol car was gutted after after an arson attack.
Emergency services were called at 1am on Tuesday to the Danetree Vauxhall garage off London Road in Daventry following reports that the police car was on fire.
The fire service was called out, but the police car was largely destroyed by the blaze.
On Twitter several police officers pointed out that such cars are a limited resource for the police, and putting this car out of action could impact on the safety of other victims of crime.
Officers said two males had been spotted leaving the area, and that they were looking at CCTV images.
Anyone with information should call Northamptonshire Police on 101.