US hopes for success in talks with Europeans on "fixing" Iran nuclear deal

The United States hopes to reach agreement with Britain, France and Germany to address President Donald Trump's concerns about the 2015 Iran nuclear deal, Washington's disarmament ambassador said on Thursday.

The crux of the accord between Iran and six major powers - Britain, China, France, Germany, Russia and the United States - was that Tehran would curb its nuclear program in return for relief from international sanctions that hobbled its economy.

UN nuclear inspectors have since repeatedly verified Iranian compliance with the deal and sanctions were rescinded.

US sanctions will resume unless Trump issues new "waivers" to suspend them on May 12, although it is unclear how fast they would go into effect. Iran has ruled out renegotiating the deal.