UK maritime agency cautions vessels amid US military operations near Iran The UK Maritime Trade Operations (UKMTO) agency has warned that a military blockade on Iranian ports remains in force, restricting all inbound and outbound maritime traffic. In an advisory, the Royal Navy-linked agency urged merchant and neutral vessels transiting the Strait of Hormuz to remain at least 30 nautical miles (56km) away from US military units and to respond promptly to any radio communications from American fo