President Donald Trump is expected to introduce new 25% tariffs on Monday on all steel and aluminium imports into the U.S., on top of existing metals duties, in another major escalation of his shake-up of trade policy.

The president said he planned sweeping tariffs on all steel and aluminum imports on Monday and would take other action to even out tariff rates with the rest of the world later this week.

President Donald Trump, speaking to reporters on Air Force One Sunday, said he planned on announcing a 25% tariff on all steel and aluminum tariffs into the United States.