The best place to go shopping in Melbourne is, well, everywhere. Every nook, cranny and sprawling area of the city has a strip, market, mall or outlet to sink (tap) your teeth (digital wallet) into.

The incident came less than two weeks after shoppers were left terrified at another centre over a similar situation.

Police swarmed the Bayside Shopping Centre at Frankston, south of Melbourne, about 10.50am Tuesday following reports a group of teenagers were inside with knives.

Meanwhile, south-west of Melbourne in Wyndham Vale, a 17-year-old boy was rushed to hospital with slash wounds to his arm and ribs after a separate incident on Sunday.