Crews have been hard at work downtown putting up dozens of security cameras, which will be used to monitor streets during the G20 Summit next month.

CTV Toronto's John Musselman spoke with several locals on Saturday, some of whom expressed concern about the surveillance. Others, however, supported the cameras.

Government officials attending the high-profile summit will mostly meet at the Metro Toronto Convention Centre on June 25, 26 and 27.

Meanwhile, street vendors in the area of the Convention Centre will be forced to move away from the site for two weeks, as U.S. President Barack Obama and other leaders from the world's most powerful countries come to town.

John Horvath, who operates a food truck in the area, joked that Obama won't be ordering any fries, unfortunately.

Still, Horvath said that the G20 is a "once-in-a-lifetime" event, so making a sacrifice by moving his fast food truck isn't a big deal.

Michel Juneau-Katsuya, a former CSIS intelligence officer, said that installing the cameras will give police a powerful tool during the summit.

He added that "ultimately, there's an element of deterrence" after CCTV cameras go up.

Police say that many of the cameras are temporary and will be taken down after the G20 Summit wraps up.

However, cameras which have been put up recently in the Entertainment District will stay operational after the Summit.