Police in West Cumbria are mounting extra patrols to deter any criminals targeting farm and plant machinery.
Crime groups often target rural sites, stealing equipment as well as vehicles such as quad bikes.
The patrols, which are already underway, are concentrating in particular on rural areas around Workington.
It is part of moves to stop criminals exploiting sites such as farmland in this part of the county.
Detective Inspector Andrew Donnelly said: “Cumbria Constabulary takes this type of crime extremely seriously.
“Our officers will be watching out for anybody who thinks they can target farmland or rural building sites.
“These places are not an easy target.
“I would urge anybody who sees anything they think might be suspicious to contact us.”
Police are urging residents, farmers and business owners to make sure they have good security in place.
Anybody who sees any suspicious people or vehicles are urged to contact police on 101.
