DUBAI, United Arab Emirates (AP) — Kuwait said on Tuesday that Iran launched a failed attack earlier this month on an island where China is helping build a port in the Gulf Arab country. The accusation came just hours before U.S. President Donald Trump was to depart for Beijing on a high-stakes visit over the Iran war and other issues.

Trump said he would have a “long talk” about Iran with Chinese President Xi Jinping but said trade would be a bigger focus. As he left for the summit, Trump again threatened Iran if its leaders don’t reach an agreement on its nuclear program.

“We have Iran very much under control,” Trump said. “We’re either going to make a deal or they’re going to be decimated. One way or the other, we win.”

Iranian state media quoted the country’s foreign ministry as calling “baseless” the allegation by Kuwait, which came under attack by Iran in the war and during the shaky ceasefire that is still holding. But the allegation and ongoing attacks in the region have threatened to reignite open warfare.

The narrow Strait of Hormuz remains in Iran’s chokehold, the U.S. is maintaining a blockade against Iran and negotiations between the two countries appear at a standstill.

“True peace cannot be built with a literature of humiliation, threats, and coercive score-settling,” Kazem Gharibabadi, an Iranian diplomat, said Tuesday on X.

With the risk of the conflict breaking out again, Israel has sent Iron Dome air-defense weapons and personnel to operate them to the United Arab Emirates, the U.S. ambassador to Israel said.

It was the first publicly acknowledged deployment of Israel’s military to the Emirates — home to Abu Dhabi and Dubai — and underlined the growing relationship between Israel and the UAE.

Also very late on Tuesday night, a magnitude 4.6 earthquake shook parts of Iran, followed by several aftershocks, according to Iranian state media. Witnesses felt the temblor in the capital of Tehran, where some people sought refuge in the streets. Iranian state TV said there were no reports of casualties.