Iran’s Islamic Revolutionary Guard Corps (IRGC) said two oil tankers exploded after passing through the Strait of Hormuz, following what it described as a breach of navigational routes. IRGC said on Monday that the two “deviant” tankers exploded after they tried to enter and exit the strait using an “unsafe route”, according to Fars News Agency, which is run by the Iranian state. Fars added that the vessels were “instigated and forced by the United States” to enter the waterway and violate the designated path. In a statement, the IRGC linked the incident to what it called an attack on Iran’s interests, and it quoted from the Quran. The force also said it would respond to what it described as unlawful action by the “terrorist American army”, adding that it had no legal legitimacy. IRGC says routes were breachedThe IRGC’s account did not provide details on damage, casualties, or investigations, but it said the explosions occurred after the tankers attempted to move through the strait via an unauthorised route. Houthis announce maritime embargo on SaudiThe IRGC’s statement came as Iran-backed Houthi militants in Yemen announced they were imposing a naval blockade on Saudi Arabia, Reuters reported. The Houthis said they had declared “a maritime embargo against the criminal Saudi enemy”, using an “an eye for an eye” framework, and that it would take effect immediately, according to their statement to Reuters. The report said Iran had called on the Houthis to block the Bab el-Mandeb Strait, which links to the Red Sea, if the United States continued strikes on Iran’s electrical infrastructure. Oil supply impact and wider disruptionReuters reported that closing the Bab el-Mandeb Strait would reduce the world’s oil supply by about 7% and prevent most Saudi oil exports from leaving the Middle East. It added that it would compound disruptions affecting oil flows out of the Persian Gulf, with a 10% reduction recorded since the war began. Iran shut down the Strait of Hormuz after the IRGC and the United States resumed hostilities last week. The shutdown came after the US and Iran had agreed an interim arrangement intended to reopen the strait and lower heightened gas prices. Mediation for ceasefire as strikes continueA senior Iranian official told Reuters on Monday that officials in Tehran had received a proposal from mediators for a 10-day ceasefire, aimed at salvaging the interim deal. Both Tehran and Washington have indicated they want to continue on a diplomatic track even as the US carried out strikes for a ninth consecutive night. US Central Command said on Sunday it had completed another round of attacks on Iranian military command centres, air defence and coastal surveillance sites, maritime capabilities, missile and drone launch locations, and communications networks. Join the discussion? 21 July 2026
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