People carry a man who was injured in clashes between tribal fighters and Shiite rebels known as Houthis, in Taiz, Yemen, Sunday, Oct. 25, 2015. Yemen’s fighting pits the Houthis and allied army units against forces loyal to the internationally recognized government as well as southern separatists and other militants. The U.N. says at least 2,577 civilians were killed since the Saudi-led air campaign began in March, while 5,078 have been injured. (AP Photo/Abdulnasser Alseddik)