Police are investigating after two men were seen making an attempt to take a caravan from a driveway in Upton.
Officers said the incident happened just before 3am on Saturday. They have not said exactly where in the village the offence occurred.
The men removed a wheel clamp and bypassed the hitch lock.
Anyone with information or CCTV should call Lincolnshire Police on 101, quoting incident 57 of July 20.