Police say a number of thefts from building sites have been reported in the past week in Grantham.
The thefts have taken place at a number of sites in the town including an incident on New Beacon Road in the past week.
Grantham police are also investigating a burglary on Dudley Road, A police spokesman said: “Please be vigilant and make sure your property is secure and locked properly at night and all windows are shut and locked. Also all out buildings and garages are secure.”
If anybody has any information on these incidents they should call police on 101.