US President Donald Trump is expected to set out a more confrontational strategy towards Iran, accusing it of pursuing "death and destruction".

It is thought he will focus on its non-nuclear activities, particularly those of the Revolutionary Guards (IRGC), accused of supporting terrorism.

The new strategy calls for stricter enforcement of the 2015 nuclear deal.

He is expected to refuse to certify to Congress that Iran is complying with the deal.

Official sources have told the Associated Press Mr Trump will say Iran is living up to the letter of the agreement but also that the deal is fatally flawed