The federal treasurer is calling on Australians to keep calm over the effects of the coronavirus, as police investigate a physical fight that broke out between three women at a Chullora Woolworths in an apparent dispute over toilet paper.

Footage captured by a shopper and circulated on social media on Saturday shows Woolworths staff intervening in the dispute and urging those involved to "back off right now" from a trolley stacked with jumbo packs of toilet rolls.

Footage of the women allegedly fighting over toilet paper at the Woolworths in Chullora on Saturday. Credit:Nine News

"I just want one pack," a shopper involved in the fracas says to another woman at the helm of the overflowing trolley.

The incident is the latest in a series of scuffles in supermarkets as shoppers panic-buy products in a bid to prepare for the likely spread of the novel coronavirus. Supermarket shelves have been stripped bare in some suburbs.