Israeli dairy and fruit farmer Tommy Kurlender refused to abandon his herd during the last war with Hezbollah, and vowed he would again stay put this time around.

The Israel-Lebanon border area has once again come under fire since Hezbollah launched attacks in support of its backers in Tehran, after Israel killed supreme leader Ayatollah Ali Khamenei.

Almost 120,000 Syrians have returned to their country from neighboring Lebanon since the latest war erupted between Israel and Hezbollah, according to International Organization for Migration figures provided to AFP on Wednesday.

"As of 17 March, 125,784 people have entered Syria from Lebanon" since the fighting there began, "about 119,000 of whom are Syrians", according to the figures from the UN agency's Displacement Tracking Matrix.

Lebanese militant group Hezbollah condemned Wednesday Israel's killing of Iranian national security chief Ali Larijani, calling it "cowardly".

"We in Hezbollah, as we condemn this cowardly assassination and the ongoing criminal American–Israeli aggression, affirm that the assassination of leaders will neither break the will of the Islamic Republic nor undermine the determination of its leadership, its people, and its fighters," the Iran-backed group said.

The European Union has called on Israel to cease its military campaign in Lebanon, after the latest Israeli strikes on Beirut.

"The EU is deeply concerned about the ongoing Israeli offensive in Lebanon which already has devastating humanitarian consequences and risks triggering a prolonged conflict," a spokesperson said in a statement Wednesday.

Kuwait arrested 10 militants affiliated with the Iran-backed Lebanese Hezbollah group on Wednesday, who were accused of plotting "terrorist" actions against vital infrastructure, the interior ministry said.

This was the second Hezbollah-affiliated cell to be arrested in Kuwait this week, as the Gulf faced daily Iranian attacks during the Middle East war, which has seen Tehran-backed groups including Hezbollah join the conflict.

A pro-Iran group in Iraq vowed Thursday to stop attacking the U.S. embassy in Baghdad for five days, but only under certain conditions, with strikes targeting other locations in the country.

After a wave of strikes on the U.S. embassy in Iraq's capital Baghdad in recent days, AFP journalists reported no drone or rocket attacks on Wednesday night.

Air raid sirens rang out late Wednesday across Israel from the north to the south following what Israeli media said was one or more missile launches from Lebanon.

The Israeli military did not immediately comment on a report from the N12 television channel that a missile fired from Lebanon had been intercepted over the southern coastal city of Ashdod.

France's foreign minister will visit Lebanon on Thursday, the ministry told AFP, after the EU called on Israel to stop its military strikes on the country.

Israel's military said Wednesday it had struck gas stations in south Lebanon belonging to a company owned by Hezbollah.

Israel's defense minister said the Israeli military had destroyed two bridges spanning the Litani River in southern Lebanon on Wednesday, alleging they were being used by Hezbollah.