South Korea is launching a likely days-long investigation into the cause of an explosion and fire aboard a South Korean-operated commercial cargo ship in the Strait of Hormuz, which all 24 crew members survived unscathed, Yonhap News Agency reported on May 5. U.S. President Donald Trump blamed the explosion on an Iranian attack and urged South Korea to join a U.S.-led mission to secure navigation through the strait, and Seoul's presidential office and defense ministry said it would carefully review its position.