US President Donald Trump said Tuesday that American and Iranian officials held a three-hour meeting shortly after he warned at the UN General Assembly that he could “annihilate” Iran if no deal is reached soon to end the nearly seven-month war.

Trump gave reporters few details about the talks but described them as “a very good meeting.”

Earlier in his address to world leaders, Trump defended his decision to launch the war and accused Iran of delaying negotiations over reopening the Strait of Hormuz and reaching an agreement to end the conflict until after the US midterm elections.

But Trump later struck a softer tone, saying he believed a settlement was within reach after meeting British Prime Minister Andy Burnham.

“I think that a settlement is going to be reached,” Trump said while sitting alongside Burnham. “They want to talk to us. They have been talking to us, even today. They’ve been talking to us, and the relationship is developing.”

The Iran war has continued to disrupt the global economy, while Trump’s UN visit came amid a busy diplomatic schedule.

He also held talks with British Prime Minister Andy Burnham and Japanese Prime Minister Sanae Takaichi.

Trump is also hosting Chinese President Xi Jinping in Washington this week as economic and technological competition between the two countries intensifies. The leaders are seeking to stabilize strained relations, although no major agreements are expected.

The meeting is considered significant amid deep differences and a lack of trust between Washington and Beijing.