Four informed sources told Reuters on Wednesday that Iranian drone attacks on American facilities in the Gulf have prompted intelligence analysts to investigate whether Russia provided assistance by supplying Tehran with target information or advanced drone technology.

The sources, who spoke on condition of anonymity because the matter involves national security issues, explained that US intelligence officials have not yet reached definitive conclusions about possible Russian involvement in the attacks on CIA facilities, but the apparent effectiveness and precision of the strikes, as well as broader Russian technical support to Iran, may be potential evidence of Moscow's involvement.