An officer was treated for a suspected broken nose after being struck in the face, Victoria Police spokeswoman Belinda Batty said.

Investigators are yet to determine the exact cause of the brawl, but a number of people are being interviewed by police.

It followed a man and woman being charged after they allegedly bashed two female police officers, including punching one in the head, following a car pursuit late last month.

It also comes less than a fortnight it was revealed prosecutors will appeal a teenager's "inadequate" sentence after the youth was not convicted or jailed for kicking a Victorian police officer in the head at a shopping centre in Melbourne's west.

The Acting Director of Public Prosecutions launched an appeal against the sentence imposed on the 17-year-old boy, who was given a nine-month community corrections order without conviction in a children's court last month.