Kuwait’s Directorate General of Civil Aviation has released a video it says shows the moment an alleged Iranian drone hit a terminal at Kuwait International Airport on June 3.

The agency described the incident as a “brutal Iranian drone attack,” saying it caused loss of life, serious injuries, and extensive material damage.

Kuwait’s Foreign Ministry previously said at least one person had been killed when a projectile struck Terminal 1 at the airport and other “vital facilities,” including diplomatic missions. Several other people were injured, the ministry added, without giving a number.

Tehran has denied deliberately targeting the passenger terminal. The Islamic Revolutionary Guard Corps (IRGC) claimed earlier that the damage was likely caused by a US Patriot missile launched to defend an American base in Kuwait from Iranian strikes.

“Our investigation and research into the Kuwaiti passenger terminal attack shows that the IRGC’s air force did not fire at this target,” an IRGC spokesman said. He claimed the destruction was caused by “an error in the American Patriot systems” after an interceptor failed to hit Iranian missiles and landed on the terminal.

The incident followed an exchange of US and Iranian strikes. The IRGC said it had launched attacks on US military bases in Kuwait and Bahrain, including the US Fifth Fleet headquarters, after American strikes on Qeshm Island.

The US Department of War claimed that Iranian missiles fired at Kuwait failed to hit their targets, saying two projectiles fell short or broke apart en route. Kuwait said its air defenses were responding to missile and drone attacks during the incident.