Police have charged a man following an alleged armed robbery at a Reservoir supermarket yesterday.

A 20-year-old Reservoir man has been charged with armed robbery, attempted armed robbery, assault with a weapon, threat to inflict serious injury, assault, assault police and possess controlled weapon.

He faced Melbourne Magistrate’s Court yesterday and was remanded to appear again on 3 March, 2017.

The incident occurred at the Edwardes Street store about 11.10am.

After the man entered the store, he allegedly threatened staff with a knife and made demands for cash, however workers were able to detain him until police arrive.

No one was physically injured during the incident.

Detectives from Darebin Crime Investigation Unit are investigating the incident and believe a number of people who may have witnessed the incident left the supermarket before police arrived.

Investigators would like to speak to those people and are urging them to come forward.