Iran has announced that it will not fulfil its obligations under the Islamabad Memorandum of Understanding (MoU) until the United States fully complies with its own commitments, signalling a further deterioration in the fragile agreement brokered to ease tensions between the two countries.

Speaking at a weekly press briefing, Iranian Foreign Ministry spokesperson Esmaeil Baghaei accused Washington of repeatedly violating the terms of the agreement. He said Tehran would not implement its obligations while the US continued what Iran described as breaches of the memorandum. According to Baghaei, American pressure has also complicated Iran’s efforts to establish a joint mechanism with Oman for managing shipping through the strategically important Strait of Hormuz.

The Islamabad MoU, signed in June 2026 with Pakistan acting as a mediator, was designed as a 14-point framework to halt hostilities, reopen the Strait of Hormuz to commercial shipping, and pave the way for broader negotiations between Washington and Tehran. However, disagreements over sanctions, maritime security, frozen Iranian assets, and alleged violations by both sides have steadily undermined the accord.

The latest statement from Tehran comes amid renewed military escalation and growing uncertainty over the future of the agreement. Analysts warn that unless both countries return to the negotiating table and honour their commitments, the Islamabad MoU could collapse, raising the risk of further instability across the Middle East.