US President Donald Trump has said he will follow through with his threat to hit imports from Canada and Mexico with 25% border taxes, known as tariffs, on 1 February. But he added that a decision about whether this would include oil from those countries has not yet been made.

Trump has vowed punishing tariffs on Mexico, Canada and China, which are Texas’ biggest international trading partners.

Donald Trump's self-imposed deadline for a first round of tariffs on Canada, Mexico, and China looms in less than two days as economic observers and world leaders try to plan amid the uncertainty.