Fighters loyal to Yemen's deposed president seized about 10 southern villages from Houthi forces on Tuesday, pursuing their offensive a day after capturing the country's biggest air base, residents and loyalist sources said. Militias siding with President Abd-Rabbu Mansour Hadi, who fled Yemen for Saudi Arabia in March, and army units trained and equipped by Gulf Arab countries have made advances against the Iranian-allied Houthis in recent weeks. Yemeni military sources said the United Arab Emirates had sent in dozens of tanks and heavy artillery pieces to the fighters in recent days, though a spokesman for the Arab coalition denied media reports that it had sent ground troops.