In an early morning announcement on Sunday, Iranian state media reported that the Revolutionary Guard's navy closed the Strait of Hormuz until further notice.
The Iranian Revolutionary Guard's declaration came after its naval forces fired warning shots at a ship they claimed was attempting to navigate through an unauthorized route, according to 'Reuters'.
Reuters cited Iranian television reports of explosions occurring in Bushehr and Assaluyeh in southern Iran early Sunday.
'Axios' reported that an American official stated the Revolutionary Guard launched a missile at a cargo ship attempting to cross the Strait of Hormuz, causing damage.
U.S. officials told 'Axios' that Washington had demanded Iran issue an official statement confirming the reopening of the Strait of Hormuz and the cessation of targeting vessels, but instead, the attack occurred.
'CNN' reported on Saturday that Oman proposed a management plan for maritime navigation in the Strait of Hormuz via two separate lanes.
According to the network, under the yet-to-be-finalized agreement, both lanes would remain open.
The southern lane, which passes through Oman’s territorial waters, would allow free navigation as it was before the conflict.
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Ships using the northern passage, through Iran's territorial waters, would require prior approval from Iran, though no fees would be imposed.
Iranian Foreign Minister Abbas Araghchi met with his Omani counterpart, Badr Albusaidi, in Muscat on Saturday to discuss mechanisms for ensuring safe passage for ships in the waterway.
Previously, 'ABC News' quoted U.S. officials saying, "The United States expects discussions with Iran on Saturday will lead to the Strait of Hormuz reopening as it was before the conflict."
Officials added, "If Iran doesn't announce by Saturday that the Strait of Hormuz is open as before, it won’t be a good day for them."
Following a memorandum signed in June, the US and Iran have held two rounds of talks, one direct in Switzerland and another indirect in Qatar, without achieving progress.
In a bid to revive negotiations, a Qatari delegation arrived in Iran on Friday, according to Tasnim News Agency, as Doha mediates between Tehran and Washington.
Pakistan, also playing a similar mediating role, urged Tehran to safeguard "hard-earned peace gains" with Washington, as conveyed by Pakistani Prime Minister Shehbaz Sharif in a post on Platform X.