A police car burns after G20 summit protesters set fire to it in downtown Toronto on Saturday. (Chris Young/Canadian Press)

By CBC News

Police used tear gas to disperse protesters during a massive and violent anti-G20 protest march Saturday afternoon through downtown Toronto that saw at least two police vehicles set ablaze, store and bank windows damaged, and much of the area put under security lockdowns.

The police cruisers were set on fire at the corner of King and Bay streets in the heart of the city's financial district. At one point when one vehicle was on fire, protesters surrounded police officers who were trying to protect the burning car, CBC reporter Amber Hildebrandt reported on Twitter.

Tear gas was also fired not far away at the corner of Adelaide and Bay streets.

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