Police responded to a report of an armed robbery that took place at Just Rite on Marsh Folly Road in Pembroke shortly after 3pm on Thursday.
A spokesman said: “It appears that a male entered the store and brandished what appeared to be a firearm and made demands of money.”
The suspect was given an undisclosed amount of cash before he left on a black scrambler and white fenders.
“We are interested in speaking with anyone who may have information that can lead to the arrest of the individual(s) who planned, and carried out this robbery,” he said.
Anyone with information is asked to contact police CID on 295-0011.