'I was screaming': Footage shows store worker being attacked over alleged robbery

Police are investigating after a grocery store worker in Victoria's Yarra Valley was allegedly punched several times by a gang of teenagers. 

Footage captured the moment three teenagers entered a store in Healesville on January 2 about 9am, where a 32-year-old woman was working.

The teenagers allegedly stole bottles of alcohol before attempting to run from the scene.

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Store worker Hannah closed the door on one of the teenage girls, who managed to get out of the shop.

Footage then captured the moment a teenager allegedly attacked the worker.

Hannah was punched in the head and kicked several times, fracturing her ribs.

Another teenage girl who had already run off returned and allegedly joined in the attack.

Hannah has since returned to work and today told 9News of the attack.

"She just grabbed my hair and then started kicking me," she said.

"The other friends that ran first, came back and started bashing me as well. 

"I was screaming out like 'help, help, help!'"

Police said a man passing by saw the incident and stepped in to help.

No arrests have yet been made.

Police described the three girls as being in their "early teens".

They said one girl was wearing a rainbow hoodie and another was wearing a black hoodie.

They were last seen running east along a footpath on the Maroondah Highway.

Anyone who witnessed the incident has been urged to come forward.

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