Saudi Arabia has warned that a coordinated attack it believes is imminent may be intended specifically to derail its de-escalation efforts with Iran, adding a diplomatic dimension to a security threat that has been escalating over the past week.

According to a Saudi official, multiple intelligence reports indicate that Iraqi militias are coordinating with the Houthis, operating under the guidance of Iran's Revolutionary Guard Corps, to prepare an imminent attack on the kingdom. Potential targets include civilian and economic sites such as energy infrastructure, ports, and airports. Saudi Arabia has observed drones and missiles being repositioned in a pattern suggesting a coordinated strike from both the north and the south — a multi-front posture echoing the architecture of past assaults on Saudi territory, including the 2019 strikes on Abqaiq and Khurais that briefly removed roughly 5% of global crude supply.

The warning follows a week in which Iran-linked attacks on Saudi interests resumed after a period of relative calm. A Houthi missile struck a Saudi oil tanker near the Bab al-Mandeb Strait — one of the world's most critical maritime chokepoints, through which a significant share of seaborne crude and refined products transits between the Indian Ocean and the Suez Canal — and air raid sirens sounded at Yanbu port on the Red Sea coast, home to a major oil-export terminal serving pipelines from the kingdom's eastern fields. That renewed activity has now escalated into what Saudi officials describe as intelligence pointing to a broader, coordinated assault on the country's economic infrastructure.

Officials said the reports of planned attacks were shocking precisely because Riyadh has been actively pursuing de-escalation, and that negotiations appear to be moving in the right direction. Saudi Arabia said it is continuing contacts with all parties, including Iran directly, and is encouraging mediation efforts, which officials likewise described as heading in the right direction. The current diplomatic push builds on the China-brokered restoration of Saudi-Iranian ties in 2023, which had opened a narrow but consequential channel for managing regional escalation.

Against that backdrop, officials suggested any planned attacks may be intended to disrupt the de-escalation and diplomatic track altogether, rather than representing a straightforward continuation of the military campaign the kingdom has faced since the wider Iran conflict began earlier this year. The involvement of Iraqi militias and the Houthis — both part of a network of Iran-aligned groups across the region — raises the question of whether elements within Iran's proxy architecture are acting against the trajectory set by Tehran's own diplomats, a dynamic that has complicated prior ceasefires in the Yemen conflict.

Saudi Arabia said its cooperation with the United States remains very high and strong at all levels, including operationally with US Central Command, and that it will take all necessary measures to respond to any aggression.

The kingdom's position now rests on a delicate balance: pressing forward with mediation it says is progressing, while preparing to respond to an attack it believes is designed to undermine that very progress.

Market Implications

The prospect that a coordinated Iraqi militia and Houthi strike could be timed specifically to derail Saudi-Iran de-escalation talks adds a new layer of risk premium to crude oil, since a collapse in diplomacy would remove the main pathway to de-escalation that traders have been pricing in. Any hit to energy infrastructure, ports, or airports would tighten physical supply chains and reinforce the geopolitical floor under oil prices, while also supporting the US dollar as a safe haven.

Risk-sensitive currencies, including the Australian dollar, remain vulnerable to a further leg lower if talks stall or a strike materialises, given their exposure to global risk sentiment and commodity flows. Markets are likely to stay highly reactive to any headline on the mediation track, given how directly it now intersects with the attack threat.

Earlier:

Oil surges as Strait of Hormuz shipping fears lift risk premium

Now we are supposedly waiting on Trump's decision on the Iran deal