US President Donald Trump is set to hold a rare cabinet meeting at the Camp David presidential retreat as Iran talks near a critical point, a White House official tells AFP.

The choice of the secluded retreat in the Maryland mountains — which Trump hardly ever visits, in a break with previous presidents — reflects the sensitive nature of discussions.

The New York Post reports that Iran was set to dominate the meeting, which was expected to be attended by all cabinet members. The economy is also on the agenda, it adds.