Bahrain explosion on March 9: analysis points to US missile, not Iranian attack

A Patriot missile likely launched from a US-operated air defense battery caused a pre-dawn explosion in Bahrain’s Mahazza neighborhood on March 9, according to a detailed analysis by academic researchers reviewed by Reuters. The blast injured dozens of civilians and caused widespread property damage, and also brought into limelight the risks of using advanced interceptor systems against relatively low-cost drone attacks.

Bahrain and Washington initially blamed the incident on an Iranian drone strike. However, the Gulf kingdom acknowledged for the first time that a Patriot missile had been involved. Officials said the missile successfully intercepted a drone mid-air and that the injuries and damage were not caused by a direct impact from either the interceptor or the drone. No independent verification of a drone strike has been presented.

THE ANALYSIS

Researchers from the Middlebury Institute of International Studies analysed open-source videos and satellite imagery to trace the missile’s trajectory. They concluded with moderate-to-high confidence that the missile originated from a US-operated Patriot battery in Riffa, roughly four miles southwest of Mahazza. The battery features design elements distinct from Bahrain-operated systems, supporting the assessment.

Video footage reviewed by the team shows a missile streaking across the sky before a flash marks its detonation. Audio and visual analysis suggest the blast occurred mid-air, scattering debris over several streets. Researchers noted that while the missile may have been targeting a low-flying drone, it is also possible that the explosion resulted from the missile’s own warhead or propellant detonating, posing serious risks to nearby civilians.

The analysis highlights a broader issue in the ongoing Gulf conflict: using high-cost, sophisticated interceptors against inexpensive drones can inadvertently endanger civilians and property. During the same night, Bahrain’s Sitra oil refinery also came under attack, illustrating the limits of missile defense systems in protecting key infrastructure.

US AND BAHRAINI RESPONSES

Bahrain maintains that the missile successfully defended the neighborhood, while the Pentagon and White House repeated that US forces do not target civilians. Senior US officials also stressed ongoing efforts to neutralise Iranian drone and missile threats.

The incident comes amid intensified hostilities in the region, with the US and Israel engaged in military operations against Iran since February 28. Bahrain, hosting the US Fifth Fleet and strategic air defenses, remains a frontline state in the broader conflict.

Patriot misfires are rare but not unprecedented. Experts say the Mahazza explosion underscores the dangers inherent in deploying advanced air defense systems in densely populated areas, especially when countering small, low-cost threats like drones.