Casey Crime Investigation Unit detectives are appealing for information following a burglary at a Narre Warren fast food outlet.

Investigators have been told two men drove a silver Volvo sedan, bearing false registration plates YLR-443, to the restaurant on Princes Highway about 7am on January 15.

The pair exited their car and broke into the store through a rear service door.

Once inside they stole cash before returning to their vehicle and leaving.

One of the offenders is perceived to be Caucasian, 180 centimetres tall with a medium build and short dark hair.

The other offender is perceived to be of African appearance, 160 centimetres tall with a slim build and wearing a BLVK cap.

Investigators have released images of the men that may be able to assist with their enquires.