A near-total internet blackout in Iran entered its 10th day on Monday, with connectivity at about 1% of its normal level, according to NetBlocks, a web tracker.

"As regional hostilities intensify, some 90 million Iranians are silenced and cut off from the global internet under a state-imposed shutdown," the tracker said on social media on Monday.

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 American Foreign Service Association, in a statement on Wednesday, said the current crisis in the Middle East "exposes real gaps in America's diplomatic readiness" and says leadership gaps -- notably the lack of Senate-confirmed ambassadors at several postings in the region -- are "impossible to ignore."

AFSA is the union and professional organization of the U.S. Foreign Service and represents 23,000 active and retired Foreign Service employees.

"At a moment of escalating regional instability, that absence of Senate-confirmed leadership matters. At the same time, attempts to push through reductions in force have left many of these embassies and the offices that support them critically understaffed," AFSA said.

"The safety of America’s diplomats and their families must remain paramount. America cannot safeguard its national interests if it cannot safeguard the diplomats who advance them. AFSA will continue urging foreign affairs agencies and policymakers to ensure that those serving overseas have the leadership, expertise, and resources they need to carry out their mission safely," the union continued.

-ABC News' Mariam Khan