Houthi fighters search the explosion site at the house of a Shiite Houthi leader in central Sanaa, Yemen, on Dec. 8, 2014. At least eight people were wounded when two explosive devices went off in Yemeni capital Sanaa on Monday. The explosive devices were planted on side roads near two houses of Shiite Houthi leaders in Sho'aob area in central Sanaa. (Xinhua/Hani Ali)