YANBU, Saudi Arabia (Dispatches) – A tanker caught fire off Saudi Arabia’s Red Sea coast on Monday after being struck by what maritime authorities described as an “unknown projectile”. 
The United Kingdom Maritime Trade Operations (UKMTO) said the vessel was hit approximately 63 nautical miles west of Yanbu, a major Saudi oil export hub, with the fire breaking out on the main deck . All crew members were reported safe with no environmental damage recorded, according to UKMTO.
Maritime security firms identified the stricken vessel as Saudi-flagged and said it had been struck by a missile. No group has claimed responsibility, though the attack’s timing and location align with Yemen’s recent declaration of a naval blockade on Saudi shipping.
The incident comes weeks after Yemen’s armed forces announced a new military strategy governing their confrontation with Saudi Arabia, following a Saudi strike on Sanaa International Airport in July that effectively collapsed a 2022 truce.
Under the new approach, Yemeni forces declared a “blockade for blockade” equation, directly responding to what they characterize as a 12-year Saudi siege on Yemen’s ports and airspace. 
A second equation involves “striking Saudi military buildups wherever they are,” while a third centers on “protecting Yemen’s sovereignty and confronting any enemy incursions”.
Yemeni officials have supported the naval blockade as a legitimate self-defense measure against a Saudi-led coalition that they say has deprived Yemenis of oil resources, restricted civilian travel, and maintained restrictions on humanitarian access. 
The “port for port” equation specifically targets Yanbu and Jizan—Saudi Arabia’s most vital Red Sea ports—in response to the blockade on Yemen’s Hudaydah port.
Yanbu has become Saudi Arabia’s primary oil export outlet since the U.S.-Israeli terrorist war on Iran effectively closed Persian Gulf export routes through of the Strait of Hormuz in March. 
The port now handles approximately nine million barrels of oil per day, making it an acutely vulnerable target.
Analysts have warned that sustained disruption to Saudi Red Sea ports could have severe consequences for global energy markets and regional supply chains. The escalation also reflects a broader shift in Yemen’s military posture, with Saudi oil and gas infrastructure now publicly declared as legitimate targets.
The attack on Monday suggests Yemeni forces are operationalizing their threats, intensifying pressure on Riyadh while demanding the lifting of the blockade and fulfillment of humanitarian commitments.