A DOG walker who was knocked down in a Park South car park remains in a “critical” condition, police say.

The 53-year-old woman was flown to John Radcliffe Hospital, Oxford, by air ambulance on Saturday morning.

Passersby said she was knocked to the ground in the Cavendish Square car park by a reversing Range Rover.

The woman - who is believed to have been walking her black dog at the time - sustained “serious” chest and leg injuries, according to Wiltshire Police.

Critical care specialists from Wiltshire Air Ambulance joined paramedics from South Western Ambulance Service at the scene on Saturday morning, shortly before 9am.

A Wiltshire Police spokesman said today that the woman remained in a “critical but stable” condition.