Iran Shipping Update: Strait of Hormuz Security Remains Highly Volatile
The Iran Shipping Update on September 25, 2026, from United Against Nuclear Iran highlights the ongoing volatile security situation in the Strait of Hormuz. The U.S. forces have responded to Iranian military assets and IRGC-owned tankers with strikes.
UANI's team chartered a supply vessel and travelled 100 nautical miles into the South China Sea, exposing the illicit activities of the ghost fleet in the Malaysian Eastern Outer Port Limits anchorage. The team observed over 22 Iran-linked tankers and cargo ships in the anchorage despite prior enforcement actions by Malaysian authorities.
The U.S. blockade against vessels transiting to or from Iranian ports has been reinstated, with U.S. forces redirecting 122 commercial vessels trying to run the blockade, disabling three that didn't comply, and boarding two for total compliance. Over 50 vessels supporting humanitarian aid have been allowed to pass.
Iran-linked tankers are clustering in anchorages along the Iranian coastline due to the reinstatement of the U.S. blockade on Iranian ports. At least 53 tankers laden with Iranian oil are currently operating along the Iranian coastline, with UANI tracking at least 37 Iranian oil and petrochemical loadings since the U.S. reinstated the maritime blockade.