Melbourne shop robbed at gunpoint

Two balaclava-clad men have used a sawn-off shotgun to rob a Melbourne convenience store.

The men walked into the shop in Mulgrave and threatened staff about 3pm on January 26.

They took cash and cigarettes and then fled in a light blue sedan driven by a third person.

The men wore matching dark blue tops and balaclavas.

One wore thongs and the other wore white runners.

Police have released security camera images of the pair.