Guns were stolen and a staff member was injured after a firearm shop in Perth's south-east was robbed on Wednesday night.

The robbery occurred sometime between 7pm and 7.45pm at Barry & Sons Firearms in Clapham Street, Beckenham.

The exact number of guns stolen is unknown but in March 2017, 130 handguns were stolen during a robbery at the same gun shop.

A staff member was taken to the Armadale hospital after being injured in Wednesday’s robbery.

Police want anyone who was in the area of Clapham Street, Albany Highway or the Kenwick link during the time of the robbery who may have dash cam videa to call Crimestoppers on 1800 333 000.