Iran's Islamic Revolutionary Guard Corps has claimed that four oil tankers were among the 15 vessels that crossed the Strait of Hormuz over the past 24 hours, according to multiple media reports, citing an IRGC statement shared by Fars news agency.
According to the reports, the vessels passed the strait after securing permission from IRGC's navy.
IRGC warned that any cooperation by the vessels with "hostile forces" would be viewed as an imminent security threat and action would be taken accordingly, the reports said.
Meanwhile, Kazem Gharibabadi, Iran's Deputy Foreign Minister, on Sunday said that only Iran and Oman have the right to exercise sovereignty on the Hormuz waterway, which usually handles about 20% of global oil and gas flows, Fars reported.
Gharibabadi said Iran has adopted new regulations to control and manage traffic navigation in the waterway, with arrangements to be coordinated with Oman.
He further urged Oman to hold its ground against US threats, following President Donald Trump's warning to blow up any country that does not "behave just like everybody else" as far as the Hormuz Strait is concerned.
A shadow of uncertainty was cast over the diplomatic efforts to reach a peace deal following an escalation in military tensions in the Middle East.
The US Central Command confirmed in a post on X that it conducted self-defense strikes against Iranian radar and drone control sites on Goruk and Qeshm Island, following the shootdown of a US MQ-1 drone over international waters.
In response, Iran's Islamic Revolutionary Guard Corps reportedly said on Monday that it targeted an airbase linked to a US attack on a Sirik Island telecoms tower.
Meanwhile, in a post on Truth Social early Monday, Trump asserted that Iran wanted to reach a deal with the US and assured it will be a good one for the US.
Responding to criticism, Trump urged everyone to settle down as he expects it all to "work out well."