President Donald Trump said on Monday that tariffs on Canadian and Mexican imports are "on time and on schedule" despite efforts by the countries to beef up border security and halt the flow of fentanyl into the U.

President Donald Trump said tariffs scheduled to hit Canada and Mexico next month were “on time” and “moving along very rapidly” following an initial delay, even as a US official cautioned the schedule could be less certain.

Canada and Mexico are expected to step up efforts this week to avoid 25% tariffs on their exports to the US by persuading President Donald Trump’s administration that their steps to increase border security and curb fentanyl trafficking are working ahead of a March 4 deadline.