Reason is Israel attack in south Lebanon.
Iran claim this breach clause 1 of the new MOU that sign less than 24 hour before.
MOU include full ceasefire on all front include Lebanon.
Iran say the agreement become useless if only Iran follow the rule.
US Israel side say they still committed but situation on ground remain tense.
BREAKING: Iran has suspended 60 days of U.S. negotiations as Israel attacks southern Lebanon
The U.S. – Israel breach of clause one comes less than 24 hours after the MOU was signed.
Iran says the agreement is pointless if Iran is the only one adhering to its commitments.
— Financelot (@FinanceLancelot) June 18, 2026
BREAKING: US Vice President Vance has cancelled his Switzerland trip for Iran negotiations which was intended as the start of nuclear talks, per Press pool.
This follows Iran's cancellation of the same Switzerland trip and 60-day negotiation period with the US after Israel…
— The Hormuz Letter (@HormuzLetter) June 19, 2026
BREAKING: Iran warns of cancelling all upcoming negotiations, re-imposing the full Hormuz blockade and responding with missiles over the direct violation of the US-Iran MOU's first clause, with Israel continuing military aggressions in southern Lebanon, including last night,…
— The Hormuz Letter (@HormuzLetter) June 18, 2026
THE IRAN U.S. NEGOTIATIONS MAY FAIL, BUT THIS DOES NOT MEAN WAR WILL RESTART
— Mario Nawfal (@MarioNawfal) June 18, 2026
🚨 BREAKING
Iran has announced that even if the war ends, Israeli ships will not be allowed to pass through the Strait of Hormuz. pic.twitter.com/PnlEdDar2s
— The Iran Observer (@tv_ir_X) June 18, 2026
Trump just said the U.S. would support Israel if it attacks Iran.
This entire peace deal is such a mess.
— WF (@WhaleFUD) June 18, 2026
IRAN'S GHALIBAF: WE HAVE NO DOUBT ABOUT DELIVERING A FORCEFUL RESPONSE IF THE OTHER SIDE BREAKS ITS COMMITMENTS
— *Walter Bloomberg (@DeItaone) June 18, 2026