U.S. President Donald Trump said he had secured guarantees from Iran that it would not develop nuclear weapons, as reports emerged he had sent a tougher peace proposal back to Tehran.

Any tweaks to the proposal could prolong even further an agreement to formally end the Middle East war and open the Strait of Hormuz maritime route after weeks of efforts to secure a deal despite fractious rhetoric and the occasional flare up of armed conflict.

Fifteen children have been killed in Lebanon and 62 injured over the last seven days, the United Nations said Friday, despite the ceasefire between Israel and Hezbollah.

Lebanon is seeking an international force to replace a decades-long United Nations peacekeeping mission whose mandate ends this year following U.S. and Israeli pressure, even as the latest Israel-Hezbollah war continues.

Military officials from Israel and Lebanon held "productive" talks in Washington on Friday, a U.S. official said, adding that the meeting will complement upcoming diplomatic discussions.

Hezbollah said on Saturday it fired rockets at the northern Israeli settlement of Kiryat Shmona, as exchanges of fire between the two sides have intensified despite Lebanon-Israel negotiations.

Israel's military issued evacuation warnings on Saturday for residents of seven villages in southern Lebanon, after Israeli Prime Minister Benjamin Netanyahu said Israeli forces had pushed deeper into the country.

Russia said Saturday it had recalled its ambassador to Armenia for "consultations" over Yerevan's growing ties with the EU, a day after President Vladimir Putin warned the Caucasus country against pivoting to Brussels.

The United States warned on Saturday it was "more than capable" of resuming war with Iran after President Donald Trump said any peace deal must adhere to his red lines, including Tehran never being able to develop nuclear weapons.

U.S. President Donald Trump on Friday said he was now making a "final" decision on whether or not to strike a peace deal with Iran.

Lebanon's culture minister told AFP on Friday that Israeli strikes on the country's south are putting heritage sites, including in the ancient city of Tyre, in "serious danger".