Police say they have had a good response from the public, on their sixth day of searching for a missing Christchurch woman.
Emma Campbell, 29, was last seen buying petrol from a Shell service station on Riccarton Road at 5.30am on Saturday.
Two hours later, her blue Toyota Corona was found just off Dyers Pass Road, with her shoes nearby.
Detective Senior Sergeant John Rae says police want to hear from anyone who was on that road before 7.30am on Saturday.
He says officers will be reviewing security footage from cameras at the bottom of the Port Hills to see whether anyone was with Ms Campbell.
Police are also following up information provided by members of the public and will be distributing leaflets with photos of Ms Campbell and her car.