At 11.47am Tuesday, police received a report that an lone gunman had entered the Hills Grocery and More store on Stadium Drive, West Bay. The man was armed with what appeared to be a handgun.
Police said he threatened staff before making off from the premises with a small sum of cash. The suspect, who was described as being dressed all in black, was last seen running towards the Ed Bush Stadium.
Police officers made their way to the area and a short time later a 19-year-old man was arrested on suspicion of robbery. He remains in police custody while enquiries continue.
Anyone who was in the area at the time of the incident and has any information which could assist police should call West Bay police station on 949-3999, the RCIPS tip-line on 949-7777 or Crime Stoppers on 800-8477 (TIPS).