Desk Correspondent , Islamabad - U.S. Vice President JD Vance left Islamabad on April 12, 2026, after 21 hours of marathon negotiations with Iranian officials ended in deadlock, with no agreement reached to extend the fragile ceasefire. Vance stated the U.S. entered "in good faith" with a "final and best offer," centered on Iran's nuclear program, but Tehran rejected key terms including commitments to abandon weapons pursuit.

Core disputes revolved around U.S. demands for verifiable nuclear curbs and guarantees against regional aggression, amid Iran's insistence on sanctions relief and Lebanon ceasefires issues unresolved from prior sessions. Pakistan's mediation efforts, hosting the 71 member Iranian delegation led by Speaker Mohammad Bagher Qalibaf, couldn't bridge the gap despite extended talks.

Vance signaled openness for Iran to reconsider the proposal, but warned of potential escalation if rejected, as the two-week truce nears expiration. No official send off marked the U.S. exit, underscoring the breakdown.