Clashes between the Houthi militias and Yemeni tribes intensified on Saturday in Hajjah, sources to Al Arabiya reported. Tribal sources confirmed that fierce battles led to the killing of at least 45 Houthi fighters. Meanwhile, coalition jets targeted a gathering of militias in a school, killing and wounding dozens and destroying a weapons store. Clashes between the tribesmen and Houthis have been ongoing since January, sources say.