ERBIL, Kurdistan Region of Iraq – Iran’s Islamic Revolutionary Guard Corps (IRGC) on Wednesday said it had seized two vessels in the Strait of Hormuz, citing a lack of prior authorization for passage, while other reports said fire was opened on a third vessel in the strategic waterway.

On Tuesday, US President Donald Trump extended the ceasefire with Iran hours before its expiry at Pakistan’s request, stressing that the US naval blockade will continue on the Iranian activity in the Strait of Hormuz. 

The developments came after Iran said it would not participate in talks with the US in Pakistan on Wednesday.

Tehran warned repeatedly that with the continuation of the blockade, it will boycott the Wednesday talks in Pakistan. 

The IRGC Navy command said in a statement that two vessels, the MSC Francesca, which it claimed was tied to Israel, and the Epaminodes, were seized after it said they had jeopardized maritime security by passing “without the necessary permits and by tampering with navigation systems” in the strait and were later “transferred to the Iranian coast,” read a statement. 

“These vessels were transferred to the territorial waters of the Islamic Republic of Iran in order to examine the cargo and documents,” the IRGC said. 

The IRGC warned that disturbing “order and safety of the Strait of Hormuz is our red line.” 

Iranian Parliament Speaker Mohammed Bagher Ghalibaf said Wednesday that a "complete" ceasefire with the US "only makes sense if it is not violated by the maritime blockade and the taking hostage of the world’s economy."

"Reopening the Strait of Hormuz is impossible with such a flagrant breach of the ceasefire," he wrote on X.

In a separate report, the British maritime security agency UKMTO said a ship off Iran had also “been fired upon and is now stopped in the water,” it said, with no casualties reported. 

On Saturday, the IRGC warned that the Strait of Hormuz has returned to its previous state of “strict management” following what it described as Washington’s repeated breaches of commitments by continued blockade.  

Tehran also stressed that control over its maritime routes remains under its authority. 

The strategic waterway of Hormuz, responsible for roughly 20 percent of the world’s oil, was closed by Iran as a means in its war with the US and Israel since the conflict started in late February, sharply driving up global oil prices. 

The strait was set to remain open for the remaining period of the ten-day ceasefire between Israel and Lebanon, which is set to expire on April 26.