A bus wreck is seen at the site of an airstrike in Dhahyan, Saada province, Yemen, on Aug. 12, 2018. Warplanes of the Saudi-led coalition targeted passenger buses in the Dhahyan popular market in northern Yemen province of Saada on Thursday, killing at least 43 people, mostly pupils under 10, and injuring 64 others. (Xinhua/Mohammed Mohammed)