Iranian missile strikes on two southern Israeli towns wounded more than 100 people on Saturday, medics said, after Israeli air defence systems failed to intercept the projectiles.

Israeli Defense Minister Israel Katz said Sunday that the army had been ordered to destroy more bridges over the Litani river being used by Hezbollah in south Lebanon and to step up the demolition of houses.

"Prime Minister Benjamin Netanyahu and I instructed the IDF (army) to immediately destroy all the bridges over the Litani River that are used for terrorist activity, in order to prevent Hezbollah terrorists and weapons from moving south," Katz said in a statement.

Israel said rocket fire from Lebanon killed one person on Sunday as Hezbollah said it attacked soldiers in northern Israel, the first fatality there in fire from Lebanon since the latest war erupted.

During almost three weeks of war in Lebanon, British-Palestinian doctor Ghassan Abu-Sittah has had no respite, telling AFP he has been working "against the clock" to save children wounded in Israeli bombardment.

Iran recently fired two ballistic missiles toward the joint U.S.-UK military base at Diego Garcia in the Indian Ocean, The Wall Street Journal reported Friday, citing U.S. officials.

Israeli Defense Minister Israel Katz warned that the United States and Israel would intensify their strikes on Iran in the coming week starting Sunday.

The United States and Israel struck Iran's Natanz nuclear facility on Saturday, the Islamic republic's atomic energy organization said.

U.S. President Donald Trump said Friday that he was considering "winding down" military operations against Iran, as the United States temporarily eased sanctions on Iranian oil shipments to stem a global supply crisis.

Iran launched a new wave of drone and missile attacks on Saudi Arabia and Israel meanwhile after supreme leader Mojtaba Khamenei claimed to have dealt a "dizzying blow" to his country's enemies.

Here are the latest developments in the Middle East war:

The Israeli military said it launched a wave of strikes on Beirut's southerb suburbs, claiming to target Iran-backed Hezbollah early Saturday, while Lebanese state media reported strikes in the country's south.