U.S. intelligence agencies are investigating whether Russia may have played a role in Iranian drone attacks aimed at CIA facilities in the Gulf, according to a report that cited four people familiar with the matter. The review appears to be focused on whether Moscow provided support connected to the strikes.

Analysts are reportedly examining the possibility that Russia supplied targeting intelligence that could have helped Iran carry out the drone attacks. The information available so far points to an active inquiry rather than a confirmed conclusion, with officials still assessing what level of involvement, if any, may have existed.

The reported investigation adds another layer to already tense relations involving the United States, Russia and Iran. Any evidence of coordination between Moscow and Tehran in attacks linked to U.S. intelligence sites in the Gulf would likely raise broader security and diplomatic concerns.

At this stage, the reported findings remain under review, and the available details are limited. The focus of the investigation underscores how seriously U.S. agencies are treating the possibility of outside assistance in attacks on sensitive American facilities.