Casey Crime Investigation Unit detectives are appealing for public assistance following an armed robbery in Hampton Park last night.

Investigators have been told five people attended a milk bar on Coral Drive about 8pm on Saturday 18 March.

Two men jumped the counter and assaulted the attendant, a 33-year-old woman, before forcing her to the ground.

A third man emptied the till and stole cigarettes while a female accomplice kept watch.

A fourth man, armed with a knife, wrestled with the 45-year-old partner of the attendant out the front of the store and pushed him through an adjoining shop window.

The 45-year-old suffered minor injuries and was taken to hospital for treatment while the 33-year-old woman was treated at the scene.

Investigators have been told that all offenders had their faces covered during the robbery and were wearing dark clothes.