A 25-year-old man has been arrested after a Woolworths supermarket worker was stabbed in the car park outside a store on the Mornington Peninsula.

It comes after an assault on a Coles supermarket worker at Barkly Square shopping centre in Brunswick on Sunday, but there is no evidence to suggest either incident was related to panic buying driven by the coronavirus pandemic.

The Woolworths employee was stabbed in the car park of the supermarket on the Point Nepean Highway in Rosebud just before 1pm on Tuesday.

Rosebud Woolworths on Tuesday afternoon. Credit:Nine News

"It is believed a staff member was collecting trolleys when he was approached by an unknown man and stabbed to the lower body just before 1pm," a police spokeswoman said.