U.S. Central Command announced a naval blockade of all maritime traffic entering and leaving Iranian ports effective 10 AM ET on April 13, 2026.
The blockade applies to vessels of all nations but will not restrict freedom of navigation through the Strait of Hormuz for non‑Iranian ports.
President Donald Trump reiterated the blockade, threatened to interdict ships paying tolls to Iran and to destroy Iranian mines in the strait.
The move follows failed U.S.–Iran talks in Islamabad, with Vice President JD Vance citing U.S. red lines on nuclear enrichment and regional proxies.