No one was injured, according to the Qatari Ministry of Defense.
President Donald Trump announced "major combat operations" against Iran on Saturday, with daytime strikes in the joint U.S.-Israel attack targeting military and government sites, officials said.
On Sunday, Iranian state television confirmed that Ayatollah Ali Khamenei was among those killed by airstrikes in Tehran on Saturday.
Iran is responding to the U.S.-Israeli operation with missile and drone attacks targeting Israel, regional U.S. bases and Gulf nations. American diplomatic facilities have also been attacked.
In Lebanon, Israel is intensifying its long-running strike campaign against the Iranian-aligned Hezbollah militia.
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Qatar’s Defense Ministry said in a statement posted to X on Monday that Iran used drones to attack a water tank belonging to a power plant in Mesaieed and another "energy facility" in Ras Laffan Industrial City.
There were no casualties, the ministry said, adding, "All damages and losses resulting from the attack will be assessed by the relevant authorities."
U.S. Central Command (CENTCOM) said in a Monday statement that three U.S. Air Force F-15E Strike Eagle fighter jets were "mistakenly shot down by Kuwaiti air defenses" while defending against attacks by Iranian aircraft, missiles and drones.
"All six aircrew ejected safely, have been safely recovered and are in stable condition," the CENTCOM statement said. "Kuwait has acknowledged this incident, and we are grateful for the efforts of the Kuwaiti defense forces and their support in this ongoing operation."
"The cause of the incident is under investigation. Additional information will be released as it becomes available," CENTCOM added.
Defense Secretary Pete Hegseth and Gen. Dan Caine, the chairman of the Joint Chiefs of Staff, are scheduled to hold a press conference at the Pentagon at 8 a.m. ET on Monday to provide details about the campaign against Iran.
The briefing will be the first of any kind by the administration since the start of what the Pentagon is calling "Operation Epic Fury" on Saturday.
-ABC News’ Luis Martinez
The Israel Defense Forces on Monday claimed to have killed several senior Iranian intelligence officials in its opening wave of strikes on Iran on Saturday.
The IDF named Syed Yahya Hamidi -- who it said was the deputy minister of intelligence for Israel affairs -- and Jalal F'or Hussein -- who it named as the head of the Intelligence Ministry’s espionage division.
The IDF said it also killed “a number of other senior officials” alongside Hamidi and Hussein.
