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.

Speaker Nabih Berri said that what concerns him at the present time and what he is intervening in is "preventing any recklessness or internal problems."

Hezbollah has again rejected direct talks between Lebanon and Israel on the eve of military negotiations between the two sides.

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".

Lebanese authorities have decried Israeli attacks near UNESCO-protected historic sites and landmarks in the country's south.

Lebanon's health ministry said an Israeli strike south of Beirut on Thursday killed a woman and two children, after Israel's army said it "precisely struck" the capital without identifying the target.