An unknown man was reportedly spotted going door to door ringing doorbells in a Northampton neighbourhood.
But now, police are asking for help after a screenshot from a front door CCTV camera was published on social media that may be linked to an incident in November.
The screenshot was taken in November in the NN3 area - made up of Weston Favell, Little Billing, Great Billing, Kingsley Park, Boothville, Lings and Moulton - and posted online, police say.
The CCTV was taken using a Ring.com camera.
Anyone with information about the screenshot can contact the police on 101 and quote crime number 18000556810.