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M/T Sea Star III
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M/T Sea Star III

Iranian-flagged oil tanker disabled on 8 May 2026 by a US F/A-18 Super Hornet firing precision munitions into its smokestack while attempting to reach an Iranian port.

Last refreshed: 9 May 2026 · Appears in 1 active topic

Key Question

What happened to M/T Sea Star III after the US disabled it on 8 May?

Timeline for M/T Sea Star III

#928 May

Disabled by US F/A-18 precision munitions through smokestack on 8 May

Iran Conflict 2026: F/A-18 disables tankers via smokestack on 8 May
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Common Questions
What happened to the Iranian tanker Sea Star III?
US Navy F/A-18s struck M/T Sea Star III's smokestack on 8 May 2026, disabling propulsion. The vessel was left adrift in the Persian Gulf pending salvage.Source: The War Zone
Why did the US disable Iranian tankers instead of sinking them?
Disabling rather than sinking preserves a legal distinction under the San Remo Manual and UNCLOS frameworks, avoiding an act of war that a sinking would constitute.Source: US Naval War College
Is M/T Sea Star III still operational after the 8 May strike?
No. The smokestack strike destroyed propulsion. The vessel was adrift in the Persian Gulf as of 8 May 2026 awaiting salvage.Source: Lowdown

Background

M/T Sea Star III is an Iranian-flagged crude oil tanker that was disabled on 8 May 2026 when US Navy F/A-18 Super Hornets from USS George H.W. Bush struck its smokestack, destroying propulsion while keeping the hull intact. The strike, coordinated with a simultaneous attack on M/T Sevda, was the first confirmed instance of US forces directly disabling Iranian vessels at sea since the tanker war era of the 1980s.

The vessel is believed to have been transporting sanctioned Iranian crude oil in violation of US OFAC restrictions. The smokestack targeting technique — first reported by The War Zone — was chosen to minimise escalatory risk: a disabled ship is not a sunk ship, preserving a legal distinction that matters enormously under the San Remo Manual and UNCLOS Article 58 frameworks governing naval enforcement in contested waters.

The disabling of Sea Star III alongside M/T Sevda sent an unambiguous signal that the US was prepared to move beyond financial sanctions to kinetic enforcement of its oil embargo. Iranian state media did not immediately confirm the vessel's identity or cargo, while international shipping monitors tracked the tanker adrift in the Gulf pending a salvage response.