FILE - The Mina Al-Ahmadi oil refinery operates in Kuwait. AP
The Kuwait Petroleum Corporation said a number of facilities of its subsidiary Petrochemical Industries Company "have been subjected to a heinous Iranian attack and targeting involving the use of drones".
It said "the attack resulted in the outbreak of fires at several of these facilities and caused severe material damage".
Earlier, Kuwait's electricity and water ministry said two power and water desalination plants were damaged by a drone attack from Iran, causing "significant material damage and the shutdown of two electricity generating units".
In Kuwait City, the finance ministry said an Iranian drone attack caused "extensive" damage to a government building, but "no human casualties were recorded".
Critical infrastructure across the Gulf came under attack from Iran on Sunday, with damage reported at energy facilities in the United Arab Emirates and Bahrain.
Gulf countries have faced repeated drone and missile salvos from Iran in retaliation for the US and Israeli strikes on the Islamic republic that began at the end of February.
Authorities in Abu Dhabi said they were battling fires at a petrochemical plant in Ruwais Industrial City on the UAE's northwest coast.
"Authorities are responding to multiple fires in Borouge petrochemicals plant, caused by falling debris following successful interceptions by air defence systems," the Gulf emirate's media office said.
Iran's military said it was targeting "aluminium industries" in the UAE and US military infrastructure in Kuwait, the official IRNA news agency reported on Saturday.
Iran has repeatedly threatened civilian infrastructure in the Gulf countries as US-Israeli attacks on Iran have also hit targets that are key to its economy.
On Saturday, a strike on a petrochemical hub in southwest Iran killed five people, the deputy governor of Khuzestan province said.
In Bahrain on Sunday, the state energy company said an Iranian drone attack sparked a fire at a storage tank that was later extinguished.
"Bapco Energies confirms an incident occurred at one of its storage facilities earlier today resulting in a tank fire, as a result of a hostile Iranian drone attack," the company said, without specifying the location of the blaze.
It added that the damage was being assessed and no injuries were reported.
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