US-Canada bridge blockade risks huge economic damage, governments warn

While protest remains on bridge between car-manufacturing cities of Detroit and Windsor, businesses risk losing $50m a day

Blockades on the busiest border bridge between Canada and the US could have a serious impact on the economies of both countries, disrupting the automotive industry, agricultural exports, and causing multimillion-dollar losses, the two countries' governments have said.

The warnings came as business associations said that manufacturing plants at the heart of North America's automotive industry face potential shortages, shutdowns, layoffs as freedom convoy" protesters continue to block traffic on the Ambassador Bridge, between the car-manufacturing cities of Detroit and Windsor.