Two Indian vessels have had to reverse course in the Strait of Hormuz following reports of gunfire from Iran’s Revolutionary Guard, a vessel-tracker said.

TankerTrackers.com said the vessels include an Indian-flagged super tanker, carrying 2 million barrels of Iraqi oil.

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Earlier, Iranian gunboats fired on a tanker in the Strait of Hormuz on Saturday (April 18, 2026), a British maritime security agency reported, after Iran’s military reversed a pledge to open the route to shipping.

The tanker’s captain reported being approached 37 kilometres northeast of Oman by two gunboats of Iran’s Revolutionary Guards Corp (IRGC). Without any radio warning, the gunboats “then fired upon the tanker”, the U.K. Maritime Trade Operations Centre said in an online statement.