Police are investigating the armed robbery of a seafood restaurant on Beaconfield Terrace in Brighton overnight.

Around 7.45pm, a man entered the business armed with what appeared to be a handgun, demanding money from a male staff member.

The staff member complied with the man’s demands, handing over a sum of cash. The man then fled the scene on foot, travelling in the direction of Longstaff Street.

The 36-year-old staff member was not physically injured during the incident.

The man is described as Caucasian in appearance, aged in his late teens with brown hair and was last seen wearing a blue and green polo shirt with large horizontal stripes and jeans.

Investigations are continuing.