As Iran retaliates, largest US military base in Middle East hit by ballistic missile, Qatar says

Three U.S. service members were killed and five were "seriously wounded" as part of the attacks on Iran, according to U.S. Central Command.

"As of 9:30 am ET, March 1, three U.S. service members have been killed in action and five are seriously wounded as part of Operation Epic Fury," CENTCOM announced Sunday morning in a post on X.

"Several others sustained minor shrapnel injuries and concussions — and are in the process of being returned to duty," the post continued. "Major combat operations continue and our response effort is ongoing."

The three U.S. fatalities and the other injuries made public by CENTCOM occurred in Kuwait, according to two U.S. officials.

Identities of the service members killed are being withheld "until 24 hours after next of kin have been notified," CENTCOM said, adding that "the situation is fluid."

-ABC News' Luis Martinez

The interim leadership council of Iran has been formed following the death of Supreme Leader Ayatollah Ali Khamenei, Iranian state TV reported Sunday.

According to the Islamic Republic's constitution, the interim leadership council is comprised of the president, the head of the judiciary and one of the members of the six “faghihs” – Islamic jurists who are scholars of Islamic law – of the Guardian Council.

According to the spokesperson for Iran's Guardian Council, since the faghih member of the Guardian Council to join the interim leadership council has been chosen, the leadership council is already formed.

"The constitution provides for the current situation and the Leadership Council will be in charge until the leadership is determined," the Guardian Council spokesman said on state TV.

According to the law, the leadership must be determined as soon as possible, given the war conditions, according to a post on Iranian state TV's Telegram account.

-ABC News' Somayeh Malekian

The United Arab Emirates' Defense Ministry said in a statement on Sunday that three people had been killed and 58 people injured in Iranian attacks since Saturday.

The ministry said that since the start of the conflict, Iran had launched 165 ballistic missiles, two cruise missiles and 541 drones toward the country. Of those, 152 ballistic missiles, both cruise missiles and 506 drones were intercepted. Thirteen ballistic missiles also fell into the sea, the ministry said.

Thirty-five drones "fell within the country's territory" causing "material damage" and casualties, the ministry said. Those killed were from Pakistan, Nepal and Bangladesh, the statement said.

Ali Larijani, the secretary of the Supreme National Security Council of Iran, said in a post to X on Sunday that Tehran is launching attacks on regional nations to target U.S. military installations there.

"To the countries of the region: We are not seeking to attack you," Larijani wrote. "But when the bases located in your country are used against us, and when the United States carries out operations in the region relying on these forces, then we will target those bases."

"These bases are not part of the land of those countries; rather, they are American soil," he added.

Since the U.S. and Israel began their strikes on Iran on Saturday, Iranian forces have launched missile and drone attacks at Kuwait, Saudi Arabia, Bahrain, the United Arab Emirates, Qatar and Oman.