Pakistan talks hang in balance as US-Iran diplomacy collides with Tehran's warnings

Live CNN updates show US-Iran peace talks in Pakistan facing mixed signals: Trump says talks will happen, while Iran denies plans for a second round; a US delegation led by JD Vance and Steve Witkoff is headed to Islamabad, but Tehran has warned against negotiations under threats. The broader crisis includes sanctions and a seized Iranian vessel, ongoing port blockades, and tension over the Strait of Hormuz, with oil prices and airline fuel markets reacting.