Thieves targeting precious metals have stolen catalytic converters from 11 vehicles in four days across Northamptonshire.
Northamptonshire Police said the thefts happened between Sunday, August 4 and Wednesday, August 7.
Vehicles targeted include Mercedes-Benz Sprinter vans, a Mitsubishi L200, a Mitsubishi Shogun and a Peugeot 406.
Catalytic converters are part of the exhaust system and contain a number of rare metals, which can make them valuable to thieves.
Sergeant Simon Moreton, who covers Wellingborough, said: “We’re warning people to be vigilant and report any suspicious activity around vehicles, particularly those with a high clearance.
“These are more likely to be targeted by thieves as they are easier to access from underneath. The catalytic converters can be cut or unbolted very quickly, in just minutes.
“The main types of vehicles targeted include vans, pick-up trucks and 4X4s. Wherever possible, we advise vehicle owners to reverse up to walls or fixed objects when parking or ensure their vehicles are kept in a locked garage.
“Please call police immediately if you notice anyone acting suspiciously around a vehicle, and if at all possible get vehicle registration details of any vehicles they might be using”.
The thieves have struck across the county.
A catalytic converter was taken from a Mercedes-Benz Sprinter parked on a drive in Knightscliffe Way, Northampton, sometime between 10pm on Tuesday, August 6 and 8am on Wednesday August, 7.
Another Mercedes-Benz Sprinter was targeted in Mendip Road, Northampton, where the exhaust system, including the catalytic converter, was stolen. The theft happened some time between 6pm on Tuesday, August 6 and 8am the following day.
Catalytic converters were also stolen from a Mitsubishi Shogun in Thrapston Road, Finedon, and a Mitsubishi L200, in Andrew’s Lane, Cranford. Both thefts took place overnight on Tuesday, August 6 and Wednesday, August 7.
A fifth theft happened in Chase View Road, Geddington, where a catalytic converter was stolen from a Peugeot 406.
Six previous catalytic converter thefts had alreday taken place overnight on Sunday, August 4 and Monday, August 5 – two in Irchester, three in Wollaston and one in Northampton.
Further advice can be found by visiting www.northants.police.uk/crimeprevention
Witnesses to any of these thefts can call Northamptonshire Police on 101. Alternatively, information can be given anonymously to Crimestoppers on 0800 555 111.