A ship in the Red Sea came under attack on Thursday off the coast of war-torn Yemen, a monitoring group run by the British military said. The United Kingdom Maritime Trade Operations group said the attack happened off Hodeida, a contested port city amid the country’s years long civil war. It said an investigation was ongoing into the incident, without elaborating. The US Navy’s Mideast-based 5th Fleet said it was aware of the attack, but declined to immediately comment further. A Saudi-led coalition has been at war since March 2015 against Iranian-backed Houthi rebels who have long held the Ye…