The U.N. Security Council backs Yemen 's embattled President . It is the first time since 2011 that a country has been targeted by U.S. drone strikes in its own territory.
The U.N. Security Council backs Yemen 's embattled President . U.N. envoy says Yemen is in a `` rapid downward spiral , '' urges dialogue . Houthi rebels have taken over the Taiz airport and set up checkpoints nearby .