A U.S. military delegation met with Lebanon's army in Beirut to discuss the implementation of Israel's withdrawal from a "pilot zone" in occupied territory, a Lebanese military official told AFP on Saturday.

Under a framework agreement reached on June 26, Israel will gradually withdraw from areas of southern Lebanon where it has deployed troops to fight Hezbollah.

Iran warned that it would no longer be bound by a deal with the U.S. aimed at ending the Middle East war if Washington's violations of the agreement continued, state TV reported on Saturday.

Iran's supreme leader on Saturday vowed revenge for the U.S.-Israeli killing of his father and predecessor, hours after President Donald Trump warned against any attempt to assassinate him.

An Israeli strike on southern Lebanon killed a young motorcyclist on Friday, Lebanese state media reported, the latest attack despite a truce in the Israel-Hezbollah war.

Iran insisted on Saturday it had "kept its word" on a ceasefire with the United States, after President Donald Trump insisted the truce was over but that he had agreed to further negotiations with the Islamic republic.

Prime Minister Shehbaz Sharif of Middle East conflict negotiator Pakistan has urged Iran's president to safeguard the "hard-earned peace" after Tehran and Washington exchanged strikes this week.

U.S. President Donald Trump said the United States would "completely decimate" Iran if it attempted or succeeded in assassinating the sitting president.

The head of Iran's supreme national security council vowed to respond to any attack on his country's infrastructure, warning Israel would not be spared following recent exchanges of fire with the United States.

"As we have already announced, any attack on infrastructure will be retaliated against, and the criminal Zionist regime responsible for these atrocities will not be safe from the response of our fighters," Mohammad Bagher Zolghadr said in a statement carried by state TV.

The United States will oversee the withdrawal of Israeli forces from "pilot zones" in the south, with the first to get underway within days, Lebanese and U.S. officials said Thursday.

A U.S. official said that new talks between Israel and Lebanon would go ahead next week, after a diplomatic source earlier told AFP that Lebanon had demanded an Israeli pullout from the zones before taking part.

Sirens blared in Jordan on Thursday, an AFP correspondent reported, hours after Iran's military said it had targeted sites in Gulf countries in retaliation for U.S. strikes.

State broadcaster Al-Mamlaka added: "Alarm sirens sounded in Jordan on Thursday to alert citizens and urge them to follow instructions."