Amazon’s cloud-computing facilities in the Middle East faced power and connectivity issues on Monday after unidentified “objects” struck its data centre in the United Arab Emirates (UAE).

The objects triggered a fire on Sunday that forced authorities to eventually cut power to two clusters of Amazon Web Services (AWS) data centres in the UAE, with restoration expected to take several more hours, according to AWS’s status page.

Localised power issues affected AWS services in both the UAE and neighbouring Bahrain, according to the page. Financial ​institutions that use AWS services have been affected by the outage, said one person with direct ⁠knowledge of the situation, requesting anonymity because of the sensitivity of the matter.

While Amazon did not identify the objects, the incident happened on the same day Iran fired a barrage of drones and missiles at Gulf states in retaliation for US and Israeli strikes that killed Supreme Leader Ayatollah Ali Khamenei.

A strike, if confirmed, on the AWS facility in the UAE would mark the first time a major US tech company’s data centre has been knocked offline by military action. It could also raise questions around Big Tech’s pace of expansion in the region.

Read More: Amazon cloud unit flags issues at Bahrain, UAE data centres amid Iran strikes

US tech giants have been positioning the UAE as a regional hub for artificial intelligence computing needed to power services such as ChatGPT. Microsoft said in November it plans to bring its total investment in the UAE to $15 billion by the end of 2029 and will use Nvidia chips for its data centres there.

“In previous conflicts, regional adversaries such as Iran and its proxies targeted pipelines, refineries, and oil fields in Gulf partner states. In the compute era, these actors could also target data centres, energy infrastructure supporting compute, and fibre chokepoints,” Washington-based think tank Centre for Strategic and International Studies said last week.

Microsoft, as well as Google and Oracle — both of which also operate facilities in the UAE — did not immediately respond to Reuters requests for comment.

“We are expecting recovery to take at least a ​day, as it requires repair of facilities, cooling and power systems, coordination with local ​authorities, and careful ⁠assessment to ensure the safety of our operators,” AWS said.

The outage had disrupted a dozen core cloud services, and the company advised customers to back up critical data and shift operations to servers in unaffected AWS regions.

Abu Dhabi Commercial Bank says its platforms ⁠and mobile ​app were unavailable due to a region-wide IT disruption, although it did ​not directly link the outage to the AWS incident.