Police are investigating the theft of a number of flags from houses in the Windyhall Road area of Coleraine.
The flags are thought to have been taken in the early hours of Tuesday 12 August. The flags were recovered in the area later the same day by local residents and returned to the owners.
Police are reviewing CCTV as they try to identify the offender, but would also appeal to anyone who witnessed suspicious activity in the area at the time to contact them on the non-emergency number 101. Or, information can be provided anonymously via Crimestoppers on 0800 555 111.