Mojtaba Khamenei chosen as Iran's next supreme leader, Iranian state media reports

The Israeli military said it would "operate with force" on Monday against what it described as Hezbollah-related targets in Beirut's southern suburbs, saying it was issuing a warning for residents in the area to evacuate.

"In the coming hours, the Israel Defense Forces will operate with force against the terrorist infrastructure of Al-Qard al-Hasan Association, which constitutes a central element in financing Hezbollah's terrorist activities and harms the Lebanese economy in service of Iranian interests," Avichay Adraee, a spokesperson for the Isreal Defense Forces, said in Arabic on social media.

Iran on Monday launched missiles toward Israel, which the country’s defenses were working to intercept, the Israel Defense Forces said.

"The IDF has identified that missiles were launched from Iran toward the territory of the State of Israel a short while ago," the IDF said. "Defense systems are operating to intercept the threat."

Iranian missiles and drones were targeting the United Arab Emirates on Monday, the country’s Ministry of Defense said.

"UAE air defences are currently responding to incoming missile and drone threats from Iran," the ministry said on social media. "MOD asserts that the sounds heard are the result of the Air Defence."

The State Department on Sunday ordered the evacuation of non-emergency government employees and their families from Saudi Arabia, updating earlier guidance that authorized them to depart due to safety risks. Saudi Arabia remains a Level 3 "Reconsider Travel" country for U.S. citizens.

The U.S. embassy in Saudi Arabia remains operational with core staff in place, according to the State Department.

-ABC News' Chris Boccia