Iran has proposed a joint security mechanism with Oman for the Strait of Hormuz and expressed readiness for shipping protocols with coastal states, according to statements from its foreign ministry. These developments occur alongside Iran's restrictions on non-Iranian traffic through the strait since late February and a U.S. naval blockade of Iranian ports, including the boarding of the M/T Celestial Sea. Reports from available sources note the incident but differ on the tanker's flag registry.