Iranian strikes on more than two dozen US bases across the Middle East targeted early-warning systems before hitting aircraft and buildings, causing billions of dollars in equipment damage, according to an analysis by The Associated Press.

The AP has independently verified damage to US facilities using satellite imagery and speaking to four regional officials briefed on what was hit. The news outlet has found that more than 115 drone and missile strikes in August, claimed by Iran or pro-Iran militias, damaged or destroyed structures on 26 military bases and other sites with American equipment.

The AP has found that Iran initially targeted aircraft hangars and air defence systems that detect incoming strikes, clearing the way for further attacks on warehouses, aircraft troop housing, hangars and other facilities.

Two regional officials say the US has moved many of its assets out of the Persian Gulf, including aircraft, air defence systems, communications systems and other equipment crucial to base operations.