At least 132 people have been killed after the United States launched a series of airstrikes on Yemen on Saturday, according to the Houthi health ministry, as a rebel spokesperson told NBC News that they group would respond with “more escalation.”

At least 132 people have been killed after the United States launched a series of airstrikes on Yemen on Saturday, according to the Houthi health ministry, as a rebel spokesperson told NBC News that they group would respond with “more escalation.”