The Israel Defense Forces said in a statement that it's planning to "deepen" its military actions against Hezbollah in Lebanon.

"We are now preparing to deepen the maneuver and strikes according to an orderly plan. We will not stop until the threat is removed from the borders and long-term security is ensured for the residents of the northern region," the IDF said.

"It is a long battle, and we are prepared for it," the IDF added.

Further details about the operation were not provided.

Iranian Foreign Minister Seyed Araghchi on Sunday reiterated the Iranian message that the Strait of Hormuz "is not closed" as President Trump imposed a deadline for Iran to stop its attacks on the strait or face strikes on energy infrastructure.

"Strait of Hormuz is not closed. Ships hesitate because insurers fear the war of choice you initiated — not Iran," Araghchi wrote on X. "Ships hesitate because insurers fear the war of choice you initiated — not Iran. No insurer — and no Iranian — will be swayed by more threats. Try respect."

"Freedom of Navigation cannot exist without Freedom of Trade. Respect both — or expect neither," Araghchi further said in his Sunday post.

"If Iran doesn’t FULLY OPEN, WITHOUT THREAT, the Strait of Hormuz, within 48 HOURS from this exact point in time, the United States of America will hit and obliterate their various POWER PLANTS, STARTING WITH THE BIGGEST ONE FIRST!" Trump said in a post on his social media platform Saturday.

-ABC News' Victoria Beaule

The Strait of Hormuz is open to everyone aside from Tehran’s "enemies," Iran’s representative to the International Maritime Organization, Ali Mousavi, told the semi-official Mehr News Agency on Sunday.

"Passage of ships through the Strait of Hormuz is possible with coordination for security and safety arrangements," Mousavi told Mehr in an interview published on Sunday.

"Iran is ready to cooperate with the IMO and countries to improve maritime safety and protect mariners," Mousavi said, according to the report.

Later Sunday, Iranian President Masoud Pezeshkian echoed that statement in a post on X, saying in part "the Strait of Hormuz is open to all except those who violate our soil. We firmly confront delirious threats on the battlefield."

In weeks since the joint U.S. and Israeli attacks on Iran began, Tehran has claimed attacks on several ships transiting through the strait and in the gulfs on either side of it.

During a visit Sunday to the site of an Iranian missile strike in Arad, in southern Israel, Israeli Prime Minister Benjamin Netanyahu said the strikes were "proof that Iran endangers the entire world."

“If you want proof that Iran endangers the entire world, the last 48 hours have given it. In the last 48 hours, Iran targeted a civilian area. They're doing that as a mass murder weapon. Luckily, no one was killed, but that's due to luck, not their intention. Their intention is to murder civilians," Netanyahu said.

Netanyahu also noted Friday morning's reported launch of two ballistic missiles at a joint U.S.-U.K. military base on the island of Diego Garcia, in the Indian Ocean, some 2,000 miles south of Iran. Neither of the missiles struck the base, nor is it clear how far the missiles traveled.

"I've been warning all the time. They have now the capacity to reach deep into Europe," Netanyahu said, in part. "They are putting everyone in their sights."

"What more proof do you need that this regime that threatens the entire world has to be stopped?" Netanyahu said. "Israel and the United States are working together for the entire world. And it's time to see the leaders of the rest of the countries join up."

-ABC News' Jordana Miller

Dubai International Airport began resuming some flights on Monday morning after a drone impact had sparked a fire nearby, airport and city officials said.

"Dubai Airports confirms the gradual resumption of some flights to and from Dubai International (DXB) to selected destinations, following the temporary suspension implemented as a precautionary measure," a Dubai Airports spokesperson said, according to an alert on the airport’s website.

The Dubai Media Office said hours earlier that authorities were responding to an incident involving a drone near the airport. Firefighters had been battling a blaze, the office said.

"Dubai Civil Defence teams have successfully contained the fire resulting from impact to one of the fuel tanks in the vicinity of Dubai International Airport," the office said early on Monday on social media. "No injuries have been reported."

Some flights were diverted to Al Maktoum International Airport, the office said.

-ABC News' Jessica Gorman