Workers at a family-owned milk bar have been left shaken after masked offenders stormed into the store in Melbourne’s south-east last night.
CCTV footage captured four offenders wearing face masks entered the Dandelion Drive milk bar in Rowville just after 6.30pm.

They demanded the female worker behind the counter to open the till, after which they allegedly stole more than $200.

CCTV footage captured four offenders wearing face masks entered the Dandelion Drive milk bar in Rowville just after 6.30pm. (Nine)

The owner’s mother then noticed what was going on and locked the front door to the milk bar, trapping the thieves inside.

“She was very brave to stand there and when they come back to try and get through the door, she’s still standing there and she could be dead,” a witness said.

Failing to find another way to escape, the armed group tried to smash open the front door.

The owner’s mother then noticed what was going on and locked the front door to the milk bar, trapping the thieves inside. (Nine)

They then demanded the staff member give them a key and left through a side door.

No one was physically harmed during the incident.

Police are working to determine whether the incident is linked to any others, including a robbery at an Endeavour Hills milk bar on Sunday.

The group remains on the run. and police are urging the public to come forward if they have any information.

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