An Israeli airstrike on first responders in south Lebanon has killed five paramedics and two hospitals are ceasing operations due to the intensity of attacks.

The head of the Marjayoun government hospital, Mounes Kalakesh, told The Associated Press that five paramedics were killed and seven were wounded in the drone strike Friday near the hospital.

Iran's supreme leader Ayatollah Ali Khamenei delivered remarks in Arabic in a rare Friday sermon after the Farsi-speaking Islamic republic had launched a missile attack on foe Israel.

During the sermon at a mosque in Tehran, Khamenei hailed Iran-backed armed group Hezbollah and Hamas, which are both fighting Israel and operate in Arabic-speaking Lebanon and the Gaza Strip, respectively.

Hezbollah said it shelled Israeli troops in a border area of south Lebanon Friday, in the latest such clash on the frontier.

The group said its fighters targeted "Israeli enemy troops in the Maroun al-Ras plain with artillery".

A source close to Hezbollah said Friday the group's slain chief Sayyed Hassan Nasrallah has been temporarily buried in a secret location fearing Israel would target a large funeral.

"Hassan Nasrallah has been temporarily buried, until the circumstances allow for a public funeral," the source said, after an Israeli strike killed the leader last week.

Lebanon’s state-run National News Agency said Friday that an Israeli airstrike has cut a main highway linking Lebanon with Syria.

The agency gave no further details about Friday’s airstrike that led to the closure of a road near the Masnaa Border Crossing, from where tens of thousands of people fleeing war in Lebanon have crossed into Syria over the past two weeks. It’s the first time this major border crossing has been cut off since the beginning of the war.

Iran's Foreign Minister Abbas Araghchi landed in Lebanon's capital Friday, official media said, as Israel intensifies its air strikes against the Tehran-backed Hezbollah group in Lebanon.

"An Iranian plane has landed at the Rafik Hariri International Airport with Foreign Minister Abbas Araghchi on board," the Lebanese National News Agency said of the first visit by a top Iranian official since an Israeli strike killed Hezbollah chief Sayyed Hassan Nasrallah in Beirut last week.

A source close to Hezbollah said Israel had conducted 11 consecutive strikes on the group's south Beirut stronghold late Thursday, in one of the most violent raids since Israel intensified its bombardment campaign last week.

Three Israeli officials told U.S. news portal Axios that Hezbollah senior official Sayyed Hashem Safieddine was the target of the strike.

An Israeli strike on the town of al-Maaysra in Keserwan targeted the house of Sheikh Mahmoud Amr, the National News Agency said.

The Lebanese army said an Israeli strike killed one of its soldiers during a rescue operation with the Red Cross in southern Lebanon on Thursday.

"A soldier was killed and another was wounded as a result of an aggression by the Israeli enemy during an evacuation and rescue operation with the Lebanese Red Cross in Taybeh village," the army said.

Hezbollah said it fired a barrage of rockets at the Israeli city of Tiberias on Thursday, while more than three Israeli air strikes hit south Beirut, following a night of intense bombardment.

Hezbollah said it "fired a salvo of rockets at the city of Tiberias," it said, in response to the Israeli bombardment of Lebanese "towns, villages and civilians".