Yemeni fighters from the Houthi movement said they will block Saudi Arabia’s coast starting Monday. Their spokesman, Yahya Saree, described it as maritime strike. Oil tankers moving through the Red Sea near Saudi ports could face delays. U.S. warplanes persisted in attacking targets after their warning. The group took several ships. Insurers now see Red Sea routes as risky. Traders are holding their breath, watching for additional charges or rerouted cargo. Saudi ports border the danger zone, so any carries swift impact.