March 19 (Reuters) - The Saudi port of Yanbu, one of two major remaining export routes for Gulf Arab oil after Iran effectively shut the Strait of Hormuz, has stopped oil loadings,

March 19 (Reuters) - The Saudi port of Yanbu, one of two major remaining export routes for Gulf Arab oil after Iran effectively shut the Strait of Hormuz, has stopped oil loadings, two sources told Reuters on Thursday, after the Saudi defence ministry said it intercepted a ballistic missile over the city. The ministry said earlier that a drone crashed at the SAMREF refinery, with damage assessment underway.