About 2.47am, two men entered the Ezy Plus Convenience Store on South Street, Kardinya.One of the men was armed with a firearm which he fired once into the roof. No body was injured.

The other man grabbed the lone 21 year old store attendant and dragged him into a room at the rear of the store where he was forced to open the safe.

The offenders stole an amount of cash before fleeing the scene on foot.

The offenders are both described as being male and of medium build with one wearing black hooded jumper and in possession of a shotgun. He also was wearing pink dishwashing gloves.

The other was wearing a black hooded top, florescent yellow t-shirt and black pants.