Yemen's Houthi rebels said on Sunday they had killed some 200 pro-government fighters and took 2,000 others prisoner in an August offensive near the southern Saudi region of Najran. On Saturday, the Houthis had said that officers from Saudi Arabia - which leads a military coalition against the Houthis - were among the captives, but those claims were not repeated in Sunday's televised press conference. "More than 200 were killed ...