A warning has gone out after seven vans were stolen in less than a month across Hyndburn.
Police are appealing to van owners to be vigilant after a spate of thefts targeting workers' vans, often containing often expensive tools or building materials.
Most of the vans either had the keys inside or were targeted because the ignition was left running. The vans were taken and then later abandoned with their contents removed.
On several occasions a white Ford Transit van has been seen in the area at the time of the crime and officers are asking van owners to take extra care to secure their vehicles and to keep expensive tools locked away.
Thefts have occurred in Accrington, Oswaldtwistle and Clayton-le-Moors.
Sergeant David Clark, of Burnley Police, said: “It is incredibly important for owners of any vehicle to ensure that it is always kept secure, particularly those who are delivering or working from their vans. Never leave the keys in the ignition or inside the vehicle – and be warned that many insurance companies will not pay out for thefts of this nature.
“Anyone who sees anything suspicious should report it to us and if anyone has any information about those responsible for these thefts, please get in touch with us via 101.”