A Saudi-led coalition intensified airstrikes on Yemen early on Wednesday. The armed Houthi movement is tightening its grip on the capital after it killed former President Ali Abdullah Saleh, who switched sides in the civil war. Saudi Arabia and its allies struck a day after Saleh’s son vowed to lead a campaign against the Iran-aligned Houthis, Reuters reports. Coalition fighter jets carried out dozens of airstrikes, both sides said. Houthi positions inside Sanaa and in other northern provinces were bombed.