Updated

US Treasury Secretary Scott Bessent outlined an expanding sanctions campaign he called 'absolute isolation,' targeting Iran's oil revenue, financial networks and transport routes. Analysts at Kpler warned Iran's oil export revenue could dry up entirely by mid-December if the US naval blockade persists, while freight costs from Turkish ports to Iran have surged fivefold in two months as Washington pressures Turkey to help cut off overland trade. Separately, new US sanctions targeting Iran's rail freight route through China are seen as unlikely to halt the trade but could make it costlier and less reliable, as experts at an Iran International town hall said the pressure campaign may erode Iran's political stability without necessarily forcing concessions.