Iran's Islamic Revolutionary Guard Corps Navy struck multiple oil tankers with limpet mines in the Strait of Hormuz on October 30, marking an apparent tactical shift in Tehran's campaign to control maritime traffic through the world's most critical energy chokepoint. The IRGC reported four separate incidents involving supertankers, with at least three vessels catching fire after hitting mines or being stopped for using what Iranian authorities described as unauthorized routes.

Limpet Mines Signal New Phase of Maritime Warfare

Iranian forces deployed limpet mines—magnetic explosive devices attached to ship hulls below the waterline—against vessels transiting southern sections of the Strait of Hormuz, according to reports from Press TV and Al Jazeera. The IRGC Navy claimed two tankers struck mines while others were halted by Iranian patrol boats. The attacks represent a sophisticated escalation from previous Iranian maritime tactics, which typically involved seizures or harassment of vessels rather than direct mining operations.

The Jerusalem Post reported that Iran's Revolutionary Guards stopped two oil tankers south of the strait following the incidents. Iranian authorities accused the vessels of navigating through routes Tehran had declared off-limits, though international maritime law recognizes the Strait of Hormuz as international waters where commercial shipping enjoys right of passage. The Three tankers caught fire in separate incidents, creating dramatic scenes captured in video footage released on October 30.

Global Energy Markets Face Renewed Instability

The tanker attacks threaten global energy supplies, with roughly 21 million barrels of oil passing through the Strait of Hormuz daily—approximately one-fifth of global petroleum liquids consumption. Institute for the Study of War analysis from October 28 noted that Russia is actively supporting Houthi operations to disrupt global energy markets, suggesting broader coordination among U.S. adversaries seeking to weaponize energy infrastructure.

The White House responded to the incidents by bolstering U.S. military forces in the Middle East and finalizing new attack plans, according to reports from The War Zone. Senator Chris Murphy highlighted the escalating situation in social media posts on October 29, as the administration weighs responses to Iranian maritime aggression. The limpet mine attacks demonstrate Iran's willingness to risk international condemnation and potential military retaliation to assert control over Hormuz transit, raising the prospect of broader conflict if commercial shipping continues to face direct attacks in the strategic waterway.