Heavy fighting has broken out between Yemeni government troops and the Iran-backed Houthis outside the central city of Marib during the past 24 hours, killing and wounding dozens of combatants, a local military official told Arab News on Sunday. The fighting took place as the UN Yemen envoy, Hans Grundberg, announced the conclusion of his first week of consultations with key Yemeni parties. Backed by Arab coalition warplanes, Yemen army ...