Yemen’s Houthis threaten escalation after American strike using 5,000-pound bunker-buster bomb CBS NewsJoint U.S.-British attack kills at least 16 in Yemen; Houthis claim attack on carrier The Washington PostRed Sea tensions: Yemen’s Houthis ‘attack’ US carrier after deadly strikes Al Jazeera EnglishHouthi rebels say at least 16 killed and 42 others wounded in joint US-British airstrikes in Yemen The Associated PressYemen’s Houthis say they launched attack on US aircraft carrier Eisenhower in Red Sea Reuters