Houthis issue NEW THREATS after deadly airport attack

RACHEL: AT LEAST 12 PEOPLE ARE. DEAD INCLUDING ONE AMERICAN AND. MORE THAN 300 PEOPLE ARE HURT. AFTER YESTERDAY'S MISSILE STRIKE. AT THE RIAD AIRPORT IN SAUDI. ARABIA. GRIFF: PRESIDENT TRUMP PUTTING. HOUTHI REBELS ON NOTICE. SIGNALING THE U.S. COULD JOIN. THE SAUDI RETALIATION.

>> REPORTER: THE HOUTHI REBELS. IN YEMEN LAUNCHED AN ATTACK ON. SUNDAY. WE KNOW THAT TERMINAL THREE WAS. PACKED WITH PASSENGERS WHEN AT. LEAST ONE BALLISTIC MISSILE. SLAMMED INTO THE BUILDING. FIRST RESPONDERS RUSHING INTO. THE SCENE AS AMBULANCES AND. HELICOPTERS EVACUATED MANY OF. THE HUNDREDS WHO WERE INJURED. THIS WAS THE SECOND SUCH ATTACK. IN JUST 48 HOURS AND DOES RAISE. QUESTIONS ABOUT GO THE UNITED. STATES COULD COME TO THE DEFENSE.

OF SAUDI ARABIA AND LAUNCHING A. NEW ROUND OF STRIKES AGAINST THE. IRANIAN PROXY GROUP. >> HAVE YOU DECIDED WHETHER TO. JOIN THE STRIKES. >> WE MAY. WE FOUND OUT ABOUT THE RECENT. ATTACK. WE'LL MAKE A DECISION. WE MOVE VERY QUICKLY. >> YOU SAID THERE WOULD NOT BE. ANOTHER STRIKE ON IRAN UNTIL. AFTER THE MIDTERMS. DOES THE LATEST ATTACK --. >> WE'RE GOING TO TAKE A LOOK. >> REPORTER: CONDEMNATION FOR. ATTACK POURED IN FROM WORLD. LEADERS AND OFFICIALS INCLUDING.

SECRETARY OF STATE MARCO RIEU RO. WHO SAYS THE UNITED STATES. STRONGLY CONDEMNS THE ATTACK ON. SAUDI ARABIA BY THE HOUTHIS. INCLUDING THE AIRPORT IN RIAD. THAT TOOK NUMEROUS INNOCENT. LIVES INCLUDING AN AMERICAN. CITIZEN. WE STAND WITH THE KING DOME OF. SAUDI ARABIA AND THE PEOPLE AND. EXTEND OUR CONDOLENCES TO THE. VICTIMS AND THEIR FAMILIES. STILL, THE HOUTHIS ARE. CONTINUING TO ISSUE NEW THREATS. A SPOKESPERSON FOR THE GROUP.

WARNED FOREIGN AIRLINES AGAINST. USING SAUDI AIR SPACE OR. AIRPORTS AS THE CONFLICT. ESCALATES. THE QUESTION IS HOW SAUDI ARABIA. AND ALLIES WILL RESPOND TO THE. BLATANT ATTACK AGAINST AN. INTERNATIONAL AIRPORT INSIDE. TH.