Middle East at 'precarious moment', Blinken says

Hezbollah said late on Friday that it had fired a salvo of rockets on the city of Safed in Israel, its first announced attack since Israeli strikes hit the southern suburbs of Beirut hours earlier.

Israel's military confirms that 65 rockets were launched from Lebanon at northern Israel. "Some of the rockets were intercepted," the statement says.

Iran’s supreme leader, Ayatollah Ali Khamenei, has called an emergency meeting of the Supreme National Security Council, according New York Times citing two Iranian officials with knowledge of the matter.

All reports on the fate of Hezbollah leader Hassan Nasrallah are "unworthy of attention," IRGC-affiliated Fars News says.

"Given the current situation in Lebanon and the means of access to Nasrallah, there is no way for Western media to verify the accuracy of these reports," according to the report.

Iran has accused the United States of complicity in Israel's attack on Beirut.

"This barbaric attack has been carried out by bombs gifted by the American regime to the brigand Zionist regime," Iran's foreign ministry spokesman Nasser Kanaani said in a statement Friday night local time.

This was Iran's first official reaction to the attack.

Kanaani called the air strike a "glaring war crime" and reaffirmed Iran's "absolute support" for the Lebanese government and Resistance.

The Lebanese army has set up a security cordon around the US embassy in northern Beirut, Reuters said citing a security source.

Earlier, the UK Foreign Office urged Britons to leave Lebanon with the "next available flight".