Iran warns ships not to bypass its chosen Hormuz route

Iran’s top diplomat warned on Sunday (June 29, 2026) that any attempt by shipping to bypass its preferred route through the Strait of Hormuz would “increase tensions” in West Asia, as U.S. and Iranian forces again traded attacks.

The exchanges underscored the fragility of a Pakistan-brokered agreement aimed at ending the war launched by the United States and Israel in February, which disrupted shipping through the strait and rattled global energy markets.

West Asia war LIVE updates – June 28, 2026

Although a ceasefire took effect in April, sporadic violence has continued in the Gulf region, with ships passing through the Strait of Hormuz often the spark.

Tehran was angered this week by Oman’s announcement, which Muscat said was in conjunction with the International Maritime Organization, of an alternative route through the strait that hugged the Omani shoreline.

Tehran has continued to insist on controlling passage through the vital strait, through which a fifth of the world’s oil and liquefied natural gas travel in normal times, something it did not have before the war.

The strait comprises Omani and Iranian territorial waters, but under customary international law the two cannot generally block passage or charge tolls.

Nevertheless, Iran prevented most ships from using the Strait of Hormuz during the war, granting it enormous economic leverage which it appears reluctant to give up.

Tehran’s enforcement of its control has sparked repeated flare-ups with Washington, the latest of which came early on Sunday, when U.S. Central Command (CENTCOM) said it had attacked 10 Iranian military targets over “continued Iranian aggression against commercial shipping”.

Iran said it responded to the attacks with retaliatory strikes against U.S. bases in Kuwait and Bahrain. Both Kuwait and Bahrain denounced the Iranian attacks.

‘Hegemonic dreams’

At the moment, Iran insists ships transiting the strait pass through a corridor close to its own shores, though this week dozens of vessels have travelled along the opposite side of the waterway, hugging the Omani coast.

“Any attempt to adopt new or separate arrangements compared to what is underway by the Islamic Republic of Iran, will only lead to more complicated situations and delays in the reopening of the Strait of Hormuz, and will increase the tensions,” Iranian Foreign Minister Abbas Araghchi said.

The published text of the memorandum says Iran will define the future administration of the strait in dialogue with Oman and the other Gulf States, but “in line” with international law.

Meanwhile, Iran’s Revolutionary Guards said they were taking measures to control traffic in the strait and that vessels in violation of those measures would be dealt with more firmly than before.

Mohammad Mokhber, adviser to Iran’s supreme leader, wrote on X that as long as Iran managed the strait, Washington’s “hegemonic dreams in the region will not be realised”.

Experts said there would likely be more Hormuz incidents.

For Iran, “a drawn-out negotiation accompanied by controlled pressure in the strait can work to its advantage”, said HA Hellyer, of London think tank the Royal United Services Institute.

While the tit-for-tat exchanges have largely been without reported casualties, the Qatari interior ministry said one of its citizens was killed on board a boat by shrapnel from “military operations in the area”, without providing further details.

The deceased was found on Sunday (June 28, 2026) after his boat failed to return to port on Saturday (June 27, 2026) as expected.