A mobile phone and cash were stolen from a private staff area of a bar in Lisburn on Saturday evening.
Police in Lisburn are advising business owners in the city to ensure private staff areas are kept secure.
Chief Inspector John Wilson said: “It is important that private staff areas are locked and secure and if possible lockers are offered to staff so they can keep valuables safe.
“Should anyone need advice on how to keep such areas secure, contact your local Crime Prevention Officer on the non-emergency number 101.”
You can ring Crimestoppers on 0800555111.