Police are urging motorists to be wary of opportunist car thieves during the cold snap after three 'frost jacking' incidents in Leeds.
Three cars were stolen this week from outside owners' homes after they started the engines to de-ice them and left their vehicles unattended.
A black Ford Fiesta, registration YF56 OLA, was stolen from Croft Street, Farsley, after the owner left the engine running outside his house at around 12 noon on Tuesday.
At around 6pm on Monday, thieves stole a red Hyundai Accent from Broadlea Hill, Bramley, after it was left with its engine running.
The car was later found in Borrowdale Crescent, Armley.
One of the thieves in that incident is described as a white man, who was 5ft 8ins to 5ft 10ins tall.
He was wearing a beige hat, navy sweatshirt with a large logo on the front and navy blue Adidas tracksuit bottoms.
Just after 1.30pm on Monday, a black Renault Megane, registration MD55 BGO, was stolen from Bradford Road, Stanningley, after it was left unattended with the engine running.
Det Insp Dan Greenwood, of North West Leeds Division, said: "Leaving your car unattended with the engine running is an open invitation to opportunist thieves. We hope these recent incidents will serve as a warning to others not to do it.
"While it might seem more convenient to leave your engine running and keep warm inside your house, having your car stolen is a massive inconvenience, particular when some insurers may refuse to pay out for thefts in these circumstances.
And, a van owner, managed to get his vehicle back through an on board tracking device.
Det Insp Greenwood added: "Either stay in your car while it warms up or use a scraper and de-icer to make sure your view is clear before setting off."
Anyone who witnessed the incidents or has any information about the thefts is asked to contact the Divisional Intelligence Unit at Weetwood police station via 0845 6060606.
Or contact Crimestoppers on 0800 555 111.