Global stocks fell after US President Donald Trump in a surprising move threatened to hike tariffs on Chinese goods this week.

Canada runs a current account deficit and exports many commodities, including oil, so its economy could suffer if the global flow of capital or trade slows. US crude oil futures were down 1.1pc at $61.26 a barrel.

Meanwhile, Canada is leaning on the United States to help settle a dispute with China, which has started to block imports of vital Canadian commodities amid a dispute over a detained Huawei executive.

At 9:19 a.m. (1319 GMT), the Canadian dollar was trading 0.5pc lower at 1.3482 to the greenback, or 74.17 US cents.

The currency, which last week gained 0.3pc as US data showed muted wage inflation, touched its weakest intraday level since April 26 at 1.3494.

On Friday, data from the US Commodity Futures Trading Commission and Reuters calculations showed that speculators have cut their bearish bets on the Canadian dollar for the second straight week.

As of April 30, net short positions had fallen to 46,745 contracts from 47,493 in the prior week.

Canadian government bond prices were higher across a flatter yield curve in sympathy with US Treasuries, with the two-year up 5 Canadian cents to yield 1.616pc and the 10-year rising 39 Canadian cents to yield 1.723pc.

On Friday, the 10-year yield touched its highest intraday since April 23 at 1.790pc.