Iran and US trade control claims as Hormuz shipping attacks mount
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The gist
Iran's IRGC navy said a 2,500-container cargo vessel sank after hitting a mine in the Strait of Hormuz.
Tanker attacks and dueling control claims are disrupting oil transit through the waterway.
Background
The Strait of Hormuz is the Gulf waterway through which a large share of the world's seaborne oil passes. Iran's Islamic Revolution Guard Corps (IRGC) Navy, a branch of Iran's military that says it monitors the Gulf and strait and issues permits for vessels, tightened restrictions on the waterway on Feb. 28, barring safe passage for vessels belonging to or affiliated with Israel and the United States after their joint strikes on Iranian territory. Attacks around the waterway have surged over the past two weeks, with Iran saying it is stepping up strikes in response to the US blockade of its ports and tougher sanctions imposed last month. Tehran says it controls passage through Iranian waters and warns vessels off routes it considers unauthorized, while Washington insists on freedom of navigation.
How it unfolded
- Feb 28, 2026Iran tightened its grip on the Strait of Hormuz, barring safe passage of vessels belonging to or affiliated with Israel and the United States after their joint strikes on Iranian territory.
- Sep 10, 2026A pipeline at Yanbu, a Red Sea export hub, was attacked.
- Oct 6, 2026U.S. forces destroyed an Iran-linked dhow in the Gulf of Oman; CENTCOM said the vessel was monitoring and targeting U.S. Navy ships and its crew was evacuated before the strike.
- Oct 13, 2026Rear Adm. Ali Azmaei of Iran's IRGC Navy threatened to sink US warships approaching the strait, saying Iranian forces are "counting down"; oil flows through Hormuz averaged 11.6 million barrels per day in the seven days to Oct 13, about 68% of the pre-war baseline, per Kpler.
- Oct 14, 2026OPEC output rebounded in September on greater tanker movement from Hormuz; late Tuesday Azmaei called U.S. assertions that the strait remains fully open "completely contrary to reality."
- Oct 15, 2026The IRGC navy said a cargo vessel carrying 2,500 containers sank after striking a mine and catching fire on an "unauthorized and high-risk" route; Iran's Army said surveillance teams identified an oil tanker that caught fire east of the strait after allegedly switching off its tracking systems.
- Oct 17, 2026Iran claimed two oil tankers carrying around 2 million barrels of crude caught fire after striking naval mines; US Central Command chief Brad Cooper said 400 ships and 100 million barrels of oil moved through the strait over the past week despite Iranian attacks.
Who’s saying what
- Official
- U.S. President Donald Trump claimed in an interview on Saturday that the United States had full control over the Strait of Hormuz, and CENTCOM chief Brad Cooper said 400 ships and 100 million barrels of oil moved through in a week despite Iranian attacks.
- Official
- IRGC Navy Commander Ali Azmaei said U.S. claims the strait is fully open are "completely contrary to reality," that the IRGC monitors the Gulf and strait round the clock, and that vessels must obtain authorization or face a decisive response.
- Caution
- The IRGC navy warned nearby vessels and fishermen to exercise extreme caution to avoid collisions with floating containers after the cargo ship sank.
Still unverified
Azmaei accused the US and its regional partners of maintaining a media blackout on two cases in which "violating vessels" were punished; Iran's state media said the two tankers had switched off positioning and radar systems and used an unauthorized route on the southern side of the strait that it says was allowed by the US.