A CONVENIENCE store attendant foiled an attempted armed robbery at Chevron Island when he fought the bandit off with a baseball bat.

A man armed with a knife entered the Thomas Drive business about 11.30 Thursday night, threatened the attendant and demanded money.

When the male attendant fought back, the would-be robber fled the store empty-handed and escaped in a dark blue sedan, which was waiting nearby.

The man is described as caucasian, about 174cm tall, of a solid build and with light coloured hair.

He had a cloth wrapped around his face and was wearing a cap.

Police are investigating the incident.

If you have any information which would assist police in their investigations, please contact Crime Stoppers anonymously via 1800 333 000 or on crimestoppers.com.au 24 hours a day.