A group of protesters have been dragged from the Victorian Parliament's public gallery, after a noisy demonstration that forced the suspension of Question Time.

The protest began as Premier Daniel Andrews made a minister's statement, forcing Speaker Colin Brooks to adjourn the house.

Protesters unfurled a banner from the gallery railings, calling on the government to scrap Wilson Security contracts, because of the company's involvement with offshore detention centres.

While Greens MPs applauded the protest, other Members were less impressed.

Some school children in the gallery appeared upset.