Detectives investigating a pair of burglaries in Thornton and Cleveleys believe the two may be linked.
The most recent incident took place on Birch Avenue while the property was empty although police say they believe it took place on December 29.
It is thought the burglary occurred in the afternoon or early evening.
Det Sgt Kathryn Riley said: “The incidents are geographically connected – they are in the same sort of area and the same sort of properties are being targeted.
It is the same type of small pocketable items being taken.”
She advised people leaving their homes empty to put lights on a timer to deter thieves.
The latest incident follows a report of a burglary on Burns Avenue. Anyone with information should call Fleetwood CID on 101.