London: Three seafarers were killed in a Houthi missile attack on a Red Sea merchant ship on Wednesday, British and US officials said, the first fatalities reported since the Iran-aligned Yemeni group began strikes against shipping in one of the world’s busiest sea lanes. The Houthis claimed responsibility for the attack, which set the Greek-owned, Barbados-flagged ship True Confidence ablaze around 50 nautical miles off the coast of Yemen’s port of Aden.London: Three seafarers were killed in a Houthi missile attack on a Red Sea merchant ship on Wednesday, British and US officials said, the first fatalities reported since the Iran-aligned Yemeni group began strikes against shipping in one of the world’s busiest sea lanes. The Houthis claimed responsibility for the attack, which set the Greek-owned, Barbados-flagged ship True Confidence ablaze around 50 nautical miles off the coast of Yemen’s port of Aden.