China announced tariffs on over $2.6 billion worth of Canadian agricultural and food products on Saturday, retaliating against levies Ottawa introduced in October and opening a new front in a trade war largely driven by U.

China imposed new tariffs on Canadian agricultural imports, escalating trade tensions while leaving room for potential negotiations by excluding canola, one of Canada's key exports.

Beijing, which set steep duties on canola, peas and pork, wants Canada and Mexico to resist U.S. pressure to raise tariffs on Chinese goods.