Iran announced the attack on state television as martial music played. A caption on screen called it “a mighty and successful response” to “America’s aggression.”

DUBAI, United Arab Emirates — Iran launched a missile attack Monday on a U.S. military base in Qatar, retaliating for the American bombing of its nuclear sites. Witnesses reported seeing missiles in the skies, followed by explosions, but it wasn’t clear if there was any damage.

Explosions boomed Monday night in Qatar, home to a major U.S. air base, shortly after its airspace was closed due to Iranian threats of retaliation after American forces pounded its nuclear sites.