Urgent: Yemen's Houthis shoot down U.S. drone, launch fresh attacks at U.S. aircraft carriers

SANAA, April 22 (Xinhua) -- Yemen's Houthis said in a statement on Tuesday that the group had shot down a U.S. MQ-9 drone over the Yemeni northwestern province of Hajjah, and launched fresh attacks against two U.S. aircraft carriers. ■