SEOUL, South Korea (AP) — A senior South Korean official says the U.S. and North Korea are maintaining a strong commitment to diplomatically resolve their nuclear standoff.

Unification Minister Kim Yeon-chul said Wednesday those efforts contrast with the tensions surrounding the collapsing atomic accord with Iran.

Kim urges Washington and Pyongyang to build stronger trust in each other so that they do not repeat the failure of the second summit between President Donald Trump and North Korean leader Kim Jong Un in Hanoi in February.

The minister says a breakthrough could depend on whether North Korea finds a meaningful concession to pair with a verified dismantlement of main nuclear complex in Yongbyon.

Kim spoke to The Associated Press and other news agencies in a group interview.