Trump urged Xi Jinping to halt any Chinese assistance to Iran during their White House talks, according to U.S. Ambassador to China David Perdue.

Perdue said the U.S. had made clear that “any help with China gives Iran is totally unacceptable.”

He added that “President Trump did a great job making sure China knows this is unacceptable” and said Beijing had already shown movement on the issue.

“We’ve seen movement on that already. That’s what the commitment is. They assured us they aren’t doing that.”