The roof of a Masterton service station collapsed after a driver fleeing police smashed into a petrol bowser and support beam.
Police say the driver then left the scene on foot after the incident, which happened at Caltex on High St just before 7.30am on Sunday.
The fire service closed High St for a short time, with the road reopening at around 8.45am.
Senior Sergeant Mike Sutton said police had been on their way to a domestic incident in High St, Masterton, and on arrival witnessed a vehicle leave the address and head south.