Smoke rises after a drone was intercepted during early morning hours in Manama, Bahrain, July 14. Reuters-Yonhap

DUBAI, United Arab Emirates — Bahrain and Kuwait faced incoming Iranian fire early Friday as U.S. airstrikes expanded to target more bridges in the Islamic Republic.

Both countries, which host U.S. forces, have faced repeated rounds of fire in recent days as an interim deal to try to end the Iran war has collapsed over fighting sparked by activity in the Strait of Hormuz.

In Iran, the state-run IRNA news agency reported Friday that at least three people had been killed in U.S. airstrikes targeting bridges in southern Hormozgan province.

On Thursday, the United States intensified its strikes against Iran on, hitting targets farther north and firing into a ship the U.S. accused of trying to break its naval blockade on the Islamic Republic. Iran retaliated by launching missiles and drones at U.S. allies in the region.