Iran tanker clash: US Navy opens fire on two Iranian vessels as Rubio waits for Tehran peace reply

Muhammad Asghar | GlobalBeat

US warships fired on two Iran-flagged oil tankers in the Gulf of Oman late Wednesday, the Pentagon confirmed, hours after Secretary of State Marco Rubio said Washington expects Tehran’s answer on a cease-fire proposal “today.”

The incident, which Iranian state media said left one tanker ablaze and at least 4 crew members wounded, marks the first direct US naval strike on Iranian commercial shipping since President Trump returned to office and risks exploding a week-old diplomatic push to halt Iran’s uranium enrichment.

Oil prices leaped 6 % in Asian trade and shipping insurers cancelled sailings through the Strait of Hormuz, through which a fifth of the world’s crude passes, after the Pentagon released infra-red footage showing rounds striking the tanker Helix 1. The video, shot from the destroyer USS Bainbridge, shows Iranian sailors on deck waving a white flag while flames lick the bridge. A second tanker, the medium-range Cedar, reportedly issued a mayday after its rudder was hit.

The exchange came after three days of back-channel talks in Muscat that Rubio described as “the closest we have been to pausing the nuclear clock since 2015.” Tehran had offered to cap enrichment at 60 % purity in return for partial sanctions relief, a concession two senior Western diplomats said was “serious enough to keep talking.” That calculus changed when the US Navy intercepted what Central Command called “two vessels behaving erratically” 48 nautical miles east of Fujairah. Rear-Admiral Sean Boyle told reporters the tankers ignored bridge-to-bridge calls, turned off transponders and accelerated toward the guided-missile destroyer USS Cole “in a manoeuvre consistent with a swarm attack.” Cole fired warning shots, then “precision rounds” at the Helix 1 engine room after Iranian crew members were seen “rigging a hose over the side,” a possible indication of a chemical attack, Boyle said. Iranian outlets rejected the claim, circulating mobile-phone video of a sailor screaming “we carry crude, nothing else” in Farsi moments before the hull was hit.

The timing rattled even hawks in Washington. Senator Tom Cotton, who last week urged Trump to “sink anything that floats under the Iranian flag,” told radio host Hugh Hewitt he was “surprised we struck while the secretary is waiting for their answer.” Cotton added he had been briefed that “a negative response was expected this morning,” suggesting the Navy had green-light rules of engagement tighter than public messaging.

Oil traders were less measured. Brent crude spiked to $84.20 a barrel, its highest since October, after the UK Maritime Trade Operations office reported “projectile activity” and advised vessels to transit only in daylight with Royal Navy escorts. The price surge wiped out a $3 billion short position held by hedge funds, according to ICE data, and dragged Asian stock markets lower. Taiwan’s CPC Corp cancelled a tender to load 2 million barrels from Kharg Island, citing “force majeure considerations,” while Greece’s TMS Tankers diverted four very-large crude carriers around the Cape of Good Hope, adding 12 days to voyages that normally pass through Hormuz.

In Tehran, protesters gathered outside the Swiss embassy – which handles US interests – chanting “war is here” after state television broadcast images of a burned deckhand being lifted onto a rescue helicopter. Parliament speaker Mohammad Bagher Ghalibaf vowed “a proportional response at sea,” without elaborating. A senior Revolutionary Guards officer, speaking on condition of anonymity because he was not authorised to brief media, told GlobalBeat that speedboat units had been ordered to “shadow every US warship east of Lavan Island” and that commanders had release authority if approached within 2 nautical miles. The Guards’ navy operates a fleet of 3,000 fast attack craft, many armed with 107 mm rockets and anti-tank missiles.

Washington’s allies urged restraint. German Foreign Minister Annalena Baerbock called on both sides “to avoid any step that could torch the entire region,” while Saudi Arabia’s energy ministry said it would use its 250 million-barrel domestic storage to “stabilise supply” if transit slows. Japan, the largest buyer of Iranian condensate before sanctions, dispatched Vice-Foreign Minister Keisuke Suzuki to Muscat to “keep the oxygen in the diplomatic room,” a Japanese official said. Even Israel, which supports maximum pressure on Tehran, signalled unease. “A naval clash now is a gift to the hardliners who want the bomb,” an Israeli security cabinet member told reporters on condition of anonymity.

The White House stayed mostly silent. Speaking in the Roosevelt Room after a trade meeting, President Trump said only that “Iran knows what it has to do,” repeating a line he used last week about shutting reactors. Asked whether the tanker incident had ended the Muscat channel, Trump replied: “We’ll see what they say today,” an apparent reference to Rubio’s deadline. The State Department cancelled the daily press briefing, citing “fluid developments,” and National Security Adviser Mike Waltz left on an unannounced trip to Bahrain, home of the Fifth Fleet.

Background

The US and Iran have not fought a declared naval battle since April 1988, when Operation Praying Mantis destroyed two Iranian oil platforms and the frigate Sahand after a US frigate struck an Iranian mine. Tanker wars through 1987-88 saw 190 commercial ships damaged, including the re-flagged Kuwaiti vessels escorted by the Pentagon. Wednesday’s encounter revives memories of that conflict but with a key difference: Iran’s fleet today relies on a dispersed swarm of small boats, while the US has layered missile defence and an aircraft carrier, the USS Harry S. Truman, already inside the gulf.

Sanctions, not mines, shape today’s frontline. Since Trump quit the 2015 nuclear accord he now says he might “revisit” if Iran agrees to enrichment limits, Iranian oil exports have fallen from 2.5 million barrels per day to around 700,000, shipped largely via ghost tankers that switch off AIS beacons. The US Navy has interdicted at least 14 such vessels since January, seizing gasoline cargoes bound for Venezuela and prompting Iran to stage retaliatory boardings. The Helix 1 and Cedar were both on the Treasury sanctions list, making them legal targets under Executive Order 13846, yet their proximity to a US destroyer during active peace talks caught analysts off-guard. “Tehran was signalling it can still ship oil, Washington was signalling it can still stop it – the result is gunfire,” said Homayoun Falakshahi, senior shipping analyst at Kpler.

What’s Next

Rubio’s demand for a same-day answer from Tehran expires at midnight Eastern, leaving a 6-hour window when Iranian markets are closed and Gulf waters are dark. Shipping sources expect the Guards to release a video response by dawn showing a close pass of a US logistics ship, calibrated to avoid casualties but assert presence, followed by a partial reopening of the Bandar Abbas-Jebel Ali route under naval escort. European diplomats said they have a draft UN Security Council statement ready that condemns “any attack on commercial shipping,” a wording both Paris and London hope Washington can accept without mentioning Iran by name, keeping open the Muscat back-channel.

The bigger gamble sits in Washington. Trump campaigned on ending “endless wars” yet faces a Republican faction led by Cotton that views any revived nuclear pact as 2015 déjà vu. If Iran answers with concessions, the president must decide whether to override his own Treasury’s designations and waive sanctions on oil sales – a move that would deflate the price spike he has long wanted to claim credit for lowering. If Tehran walks away, the White House has already prepared an order adding the Guards’ entire naval arm to the Foreign Terrorist Organisation list, a step that would oblige the Navy to treat every patrol boat as an al-Qaeda affiliate and keep the world’s busiest oil choke-point on a hair trigger for the rest of the summer.