Israel's first responders said one person was killed by shrapnel as several blasts rocked central Israel Monday, shortly after the military reported detecting new missiles launched from Iran.

"After performing resuscitation efforts, we had to pronounce the death of a man, approximately 40 years old," Magen David Adom said in a statement, adding that the death occurred at a construction site in central Israel.

The Israeli army started a new wave of strikes on Dahieh on Monday, after it warned it would target branches of Al-Qard al-Hassan, a financial firm linked to Hezbollah.

Two Israeli airstrikes targeted a branch of Al-Qard al-Hassan in Sfeir in Beirut's southern suburbs. Other strikes targeted branches of the firm in other areas including Haret Hreik, Beer al-Abed, and Burj al-Barajneh.

Hezbollah said early on Monday it was fighting Israeli forces who landed in eastern Lebanon by helicopter across the Syrian border, the second such operation since the outbreak of the latest conflict with Israel.

During the day, the group claimed responsibility for at least 10 attacks against Israel and its forces, including against troops that advanced into Lebanese border towns and a missile salvo on an air base in Haifa.

Iran's ruling clerics on Sunday appointed the slain leader's son, Ayatollah Mojtaba Khamenei, as the country's new supreme leader, defying threats from the United States and Israel to oppose him.

Israel struck the Palestinian refugee camp of Ain al-Hilweh in southern Lebanon on Sunday, Lebanese state media reported, amid the new war between Israel and Iran-backed Hezbollah.

Israeli strikes on Lebanon have killed 394 people in the past week, including 83 children and 42 women, the country's health minister said Sunday.

Rakan Nassereddine also said at a press conference that nine rescue workers were among the dead, condemning attacks on medical teams and ambulances.

More than 100 Iranians, including some diplomats, were evacuated from Beirut overnight on a Russian plane, a Lebanese official told AFP on Sunday.

"A total of 117 Iranians, including diplomats and embassy staff, were evacuated on a Russian plane that left Beirut overnight from Saturday to Sunday," the official said on condition of anonymity.

Iran's Revolutionary Guards said on Sunday that they had launched missiles towards the Israeli cities of Tel Aviv and Bersheeva, as well as an airbase in Jordan.

"The 28th wave of the Operation Honest Promise 4 was launched by the next-generation missiles of the Guards aerospace force against the areas of Beersheva, Tel Aviv, and the Al-Azraq airbase," the Guards said in a statement, according to state TV.

Iran's Revolutionary Guards said Sunday that the country's forces could fight an intense war for six months against the United States and Israel, which said it struck Tehran's commanders at a seaside hotel in the heart of Beirut.

As the conflict spilled into its second week, the regional repercussions spiraled, with Saudi Arabia intercepting a wave of drones headed for targets including the diplomatic quarter in capital Riyadh and Kuwait saying an attack hit fuel tanks at its international airport.

The health ministry said Sunday that an Israeli strike on a hotel in central Beirut killed at least four people, with Israel saying it had targeted commanders from Iran's Revolutionary Guards.

Lebanon was drawn into the Middle East war on Monday, when Hezbollah attacked Israel in response to the killing of Iranian supreme leader Ayatollah Ali Khamenei during U.S.-Israeli strikes.