Trump says the U.S. military is winning the war with Iran. Tehran leaders disagree.

The United Kingdom Maritime Trade Operations (UKMTO) Centre on Tuesday issued an advisory after it received a report of an incident involving a tanker and unspecified military forces off the coast of Oman.

“Reports indicate that the tanker was subject to interaction as part of ongoing military activity in the region,” the UKTMO said, describing the incident as "verified." The interdiction occurred approximately 121 nautical miles east of Duqm, Oman.

Separately, Iranian state-run media reported on Tuesday that the Islamic Revolutionary Guard Corps claimed that two oil tankers hit naval mines south of the Strait of Hormuz.

-ABC News’ Nasser Atta and Othon Leyva

Secretary of Defense Pete Hegseth made an unannounced visit to Israel on Monday, two Israeli sources told ABC News, meeting with Israeli Prime Minister Benjamin Netanyahu at an air base in the south of the country.

The meeting lasted for several hours and included Israeli Defense Minister Israel Katz, the sources said. Both the Pentagon and Netanyahu's office declined to comment on the visit, which was first reported by Axios.

In a post to X on Monday night, Hegseth shared photos of a visit with troops in the Middle East, though did not disclose that he was undertaking a visit to Israel.

-ABC News' Jordana Miller and Luis Martinez

The British Defense Ministry announced on Tuesday that it will "provide additional defensive military support" to Saudi Arabia amid escalating attacks by Iran-backed Houthi rebels in Yemen.

In a statement, the ministry said its forces "will fly defensive counter air missions to support the protection of Saudi cities and critical national infrastructure against aerial attack, using RAF Typhoon fighter jets."

The jets will operate defensively and "will not conduct offensive strikes against the Houthis," the ministry said. The Typhoons will be supported by an A400M military transport aircraft and British military advisers, the statement said.

Defence Secretary Wes Streeting described the Houthi attacks on Saudi Arabia as "despicable," adding that the recent Houthi strikes on the King Khalid International Airport in Riyadh "shows the lengths the Houthis are going to escalate the situation in the region."

-ABC News' Zoe Magee

Saudi military spokesperson Col. Turki Al-Maliki said in a post to X on Tuesday morning that Saudi forces intercepted a Houthi ballistic missile fired toward the capital city Riyadh.

President Donald Trump addressed the ongoing conflict with Iran at his rally in Kansas on Monday night.

Trump said the U.S. military is winning the conflict with Iran, suggesting that American action has prevented Tehran's acquisition of a nuclear weapon -- an alleged ambition that Iranian leaders have repeatedly denied.

"By the way, somebody said you could leave right now. It's true. We can leave right now. They're not going to have a nuclear weapon," Trump said, calling the Iranians a "rough group."

"We have the greatest military," Trump said. "We rebuilt it in my first term. And if you have any questions about that, just ask Venezuela or ask Iran."

-ABC News' Isabella Murray

Russia will not stop cooperating with Iran amid the conflict in the Middle East, Russian Foreign Minister Sergey Lavrov said Monday.

"Despite the difficult situation that has already been mentioned more than once, Russia does not intend to abandon its agreements with Iran in the economic and investment spheres," Lavrov said during a press briefing in Tehran, according to a readout from his office published by Russian state media.

Lavrov mentioned that Russian specialists are "gradually returning to the Bushehr nuclear power plant" in Iran, and that Russian engineers are expected to soon begin construction on the Rasht–Astara railway being developed jointly by Russia and Iran.

The Department of State’s Bureau of Consular Affairs warned Americans in the Middle East to "exercise heightened vigilance due to the complex security environment," saying Iran or its proxies could target Americans or U.S. interests "throughout the world."

"Iranian-supported Houthis have engaged in hostilities against Saudi Arabia, including attacks on civilian airports and other critical infrastructure resulting in civilian casualties and severe travel disruptions," the department said on Monday. "The hostilities have the potential to escalate rapidly beyond that immediate area."