A senior Saudi official told Reuters that intelligence reports indicated that Iraqi militias coordinating with Yemen's Houthis were preparing imminent attacks under the guidance of Iran's Revolutionary Guards.

The official, speaking on condition of anonymity, said the attacks could target civilian and economic infrastructure, including energy facilities, ports and airports, and that Saudi Arabia had observed drones and missiles being moved, suggesting coordinated operations from the north and south of the country.

The official added that any planned attacks could be designed to "disrupt" de-escalation a diplomatic efforts in the region.