The Islamic Revolutionary Guard Corps (IRGC) said it had closed the Strait of Hormuz after U.S. President Donald Trump agreed to a ceasefire that required the waterway to remain open.Iran had threatened to close the strait again on Wednesday morning due to Israeli strikes in Lebanon. For his part, Trump insisted that Lebanon had never been part of the ceasefire deal."Chief international correspondent Lyse Doucet says that despite Pakistani Prime Minister Shehbaz Sharif announcing a ceasefire on all fronts, attacks in Lebanon have continued - and in some ways intensified," BBC reported.Within hours, the IRGC said that traffic through the strait had been stopped. The Associated Press also confirmed the report."Islamic Revolutionary Guard Corps (IRGC)-affiliated news agency Fars has reported that while two oil tankers were able to pass through the strait with permission from Iran this morning, the passage of oil tankers through the Strait of Hormuz has been stopped," according to the BBC report. "The Islamic Republic News Agency is also reporting ships have been halted, with both outlets referencing Israel's continued strikes on Lebanon."Ship-broker SSY confirmed that vessels in the Gulf had been notified of the situation."Attention all vessels," an IRGC announcement said. "Attention all vessels. Attention all vessels in Persian Gulf and Oman Sea. This is the IRGC Navy Station. Transiting the Strait of Hormuz remains closed and you need permission from the IRGC before sailing through the strait. Any vessel trying to travel into the sea will be targeted and destroyed."