Vehicle owners in Horncastle have been warned to be on guard against the theft of catalytic converters.
Catalytic converters are part of the exhaust system, designed to reduce carbon emissions in the environment.
They are valuable to thieves. Vans, pick-up trucks and 4x4 vehicles are usually targeted as they are easier to access from underneath.
There are reports vehicles have been targeted in Horncastle and Woodhall Spa.
Catalytic converters can be cut or unbolted in just minutes, leaving victims with a hefty bill for replacement.
Police advise motorists, when possible, to park their vehicle in a locked garage, or in a parking spot overlooked by residents.
They say vehicle owners should consider using a catalytic converter protection device or marking system.
Anyone who sees any suspicious activity under a vehicle should report it to police with as much information as possible, including any vehicle registrations.
More information is available by calling 101 and asking for a Crime Prevention Officer,
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