A bike was stolen after an intruder entered a flat.
Between 9pm and midnight on Thursday (26 June) an intruder entered a flat in Buckhurst Road and stole a red Voodoo Hoodoo mountain bike.
Detective Constable Cally Fox said: "I want to speak to anyone who was in the area at the time and could have seen or heard something suspicious.
"This is quite a distinctive bike and I would urge anyone to contact us if they see it or are offered the chance to buy it."
Sussex Police launched Operation Magpie to tackle burglary across the county.
Anyone with information should call 101 quoting serial 1434 of 27/6, email firstname.lastname@example.org or call the independent charity Crimestoppers anonymously on 0800 555111.