U.S. and British diplomats urged Houthi forces to end an offensive in northern Yemen on Sunday after at least 17 people were killed in an explosion which the Saudi-backed government blamed on a Houthi missile strike. Among those killed in Saturday's explosion near a petrol station in Marib City was a five-year-old girl who was charred beyond recognition. Reuters TV footage showed the partially covered bodies of the child and a man, who the interior ministry said was her father, lying in a military hospital.