Iran live updates: UAE says it intercepted Iranian missiles and drones

President Donald Trump stopped short of saying the U.S.-Iran ceasefire has been violated, following reports of Iranian attacks on commercial vessels near the Strait of Hormuz and on oil infrastructure in the United Arab Emirates.

"[It was] not heavy firing," Trump said in a phone call with ABC News chief Washington correspondent Jonathan Karl when asked if the ceasefire had been violated. "We'll let you know. Ships are moving. You know, we moved quite a few last night -- big ones. There was no firing. I guess there has been some recently. I'm looking into it."

Over the past several hours, Iran fired on a South Korean ship near the Strait of Hormuz and fired missiles and drones on the UAE. And, according to U.S. Central Command, U.S. forces fired on six Iranian fast boats and intercepted several Iranian missiles and drones.

Trump told ABC News that Iran "better hope [the ceasefire] remains in effect. The best thing that can happen to them is that we keep it in effect."

And what happens if the ceasefire is broken?

"I'll let you know, like I'll let everyone else know," he said. "We just heard about this, and we'll find out about it. What should happen is South Korea should get involved. It was a South Korean ship that got hit. And I would think, if you have a ship that's hit, you should immediately send some people."

Asked about the attacks on the UAE, Trump said the missiles and drones were "shot down for the most part."

"One got through. Not huge damage," he said.

On what this all means about the prospects for ending the war, Trump said, "We have it under control. One way or the other, we win. And you know why, Jon? I always win. You found that out a long time ago."

The United Arab Emirates' foreign affairs ministry said it "reserves its full and legitimate right to respond to" Iranian missile and drone attacks, which it said targeted civilian sites and facilities.

The ministry called Monday's attacks, which mark the first time any Gulf country has come under significant attack by Iran since the ceasefire took hold in early April, a "dangerous escalation and an unacceptable transgression."

The White House did not immediately respond to ABC News when asked about the attacks on the UAE and what they mean for the ceasefire.

When asked about the attacks during an update on "Project Freedom," Adm. Brad Cooper, the head of U.S. Central Command, told reporters that he would "refer to the UAE on that."

"That's really a matter under their national jurisdiction and not part of our project operation," he said.

President Donald Trump said that Iran is "taking shots" at ships from countries not involved with the U.S.-Iran conflict in the Strait of Hormuz, in violation of "Project Freedom."

"Iran has taken some shots at unrelated Nations with respect to the Ship Movement, PROJECT FREEDOM, including a South Korean Cargo Ship," Trump posted on his social media platform.

"Other than the South Korean Ship, there has been, at this moment, no damage going through the Strait," he added.

-ABC News' Isabella Murray

The U.S. took out six small Iranian boats that were "threatening commercial shipping" on Monday, Adm. Brad Cooper, the head of U.S. Central Command, told reporters during an update on "Project Freedom."

Cooper said that over the past 12 hours, the Islamic Revolutionary Guard Corps has been launching missiles, drones and small boats toward ships the U.S. was protecting in the Strait of Hormuz, and that the U.S. "defeated each and every one of those threats" through defensive munitions. AH-64 Apache attack helicopters and others were used to "eliminate" the boats, he said.

No U.S. military ships have been struck, Cooper said.