Iran has announced the closure of shipping traffic through the Strait of Hormuz, accusing the United States and Israel of violating the ceasefire agreement.

Iran’s state-run news agency, Mehr News, reported today (Saturday) that the decision was made by Khatam al-Anbiya, the central headquarters of the country’s military command. They stated that this is a “first step” and further measures could be taken in the future if the aggression continues.

The Strait of Hormuz is a vital waterway for global oil transport. Iran had previously nearly closed the waterway following the launch of a joint US-Israeli aggression against Iran on February 28. Tehran had reopened it recently after reaching an understanding with the United States.

Although a memorandum of understanding was signed, a permanent peace treaty between the US and Iran has not yet been concluded. The finalization of the agreement was expected to follow direct talks between high-ranking officials from both nations in Geneva, Switzerland. However, uncertainty has arisen due to Israel’s continued attacks in Lebanon.

Meanwhile, US Vice President JD Vance stated today that he might soon travel to Switzerland to participate in talks with Iran. He expressed optimism that the ceasefire—signed based on a 14-point agreement between Washington and Tehran—would hold, adding that he had seen no evidence of the Strait of Hormuz being closed.

Iran also announced today that a delegation would travel to Switzerland to discuss the implementation of commitments regarding the interim agreement with the US.

A spokesperson for the Iranian Foreign Ministry told Fars News Agency that they would raise the issue of the US fulfilling its commitments in Switzerland and seek clarification on how the US intends to discharge its obligations.

Mehr News Agency reported that the delegation would depart for Switzerland within minutes. The spokesperson added that if the US fails to honor its commitments, Iran will take necessary measures.