Israeli President Isaac Herzog told Fox News that a peace agreement between Israel and Lebanon cannot be reached if Iran is “trying to squeeze themselves into this conflict” via the Iranian-backed Hezbollah militant group.

Some south Lebanon residents cautiously headed back to their hometowns on Sunday after fighting paused between Israel and Hezbollah the previous evening, even as Lebanon's army warned locals to delay returns.

Israel's military chief said on Sunday that Hezbollah had suffered a severe blow fighting Israeli forces and was now in a "very difficult position", as he met with troops in southern Lebanon.

Israeli Prime Minister Benjamin Netanyahu said on Sunday that Israeli forces would remain in southern Lebanon "as long as necessary", while also vowing to prevent Iran from acquiring nuclear weapons.

Hezbollah chief Sheikh Naim Qassem on Sunday rejected any Israeli security zone in Lebanon, after Israel's Prime Minister Benjamin Netanyahu vowed his troops would remain in the country's south for as long as necessary.

Iran said on Sunday that the ongoing conflict in Lebanon between Israel and Hezbollah will top the agenda in talks with the United States in Switzerland, as well as issues such as frozen Iranian funds and the sale of the country's oil.

The Israeli military said that one of its soldiers was killed in fighting in southern Lebanon on Saturday, marking the fifth such fatality since a U.S.-Iran deal was reached to end the Middle East war.

Lebanon's central bank on Saturday condemned a "direct and deliberate" Israeli attack on one of its branches in the southern city of Nabatieh, where Israel had intensified its strikes despite a ceasefire.

U.S. Vice President JD Vance has said that Lebanon is one of "two big things" that will be discussed in the negotiations with Iran, as he departed from Washington for Switzerland.

Israeli Prime Minister Benjamin Netanyahu and Defense Minister Israel Katz on Saturday ordered the Israeli army to halt its operations in Lebanon while maintaining its positions, Israeli reports said.