Police are appealing for information to catch a man wanted for graffiti across the Plungington area of Preston.
Since January this year graffiti has appeared on a Preston shop and again in November and December.
Other graffiti has been sprayed on Aqueduct Street and elsewhere in Plungington.
Lancashire Police has released a number of images showing the graffiti.
The first incident took place on 8.30pm on 8 January when someone witnesses a man walking a dog and carrying a tin of spray paint on Bold Street.
He approached a large wall belonging to the Bed Centre and sprayed a large piece of siver graffiti.
Sergeant Scott Archer from Lea Neighbourhood Policing Team said: “We think these offences could be linked and I would appeal to anybody that recognises the graffiti tag or has witnessed any group of individual spraying the graffiti to come forward and call Preston Police on 101.
“This graffiti is time consuming and costly to remove as well as making the area look untidy so we need the public’s help.”
People with information can also contact the independent charity Crimestoppers anonymously on 0800 555 111 or on-line at Crimestoppers-uk.org. No personal details are taken, information is not traced or recorded and you will not go to court.