SANAA: Arab airstrikes killed 15 people and wounded dozens across Yemen late Saturday, the Houthi-run Saba news agency reported. The dead included five women and two children in attacks on Saada and Marib provinces, the agency said.

A Saudi-led Arab coalition has been bombarding Houthi rebels and allied army units since March 26 in a campaign to restore exiled President Abed Rabbou Mansour Hadi to power.

Hadi, Riyadh’s ally, was pushed aside last year when Houthis advancing from their northern strongholds overran the government in the capital Sanaa and went on to capture lands to the south.

Anti-Houthi forces said they repelled an attack by Houthis and allies in Yemen’s army on the southern city of Daleh Sunday, in clashes which left 17 Houthi fighters and two local militiamen dead. In Aden, four local fighters were killed in a Houthi attack, militia sources said. Residents said Arab forces airdropped artillery equipment including mortar batteries to the anti-Houthi fighters over the weekend.

U.N.-sponsored talks in Geneva between Yemen’s warring parties ended Friday without agreement on a cease-fire, an outcome relief agencies had sought to stave off what many see as a humanitarian disaster.

More than 2,800 people have been killed since March 26. The United Nations says more than 21 million people, or 80 percent of the population, are now estimated to be in need of some form of humanitarian aid, or protection, or both.

A series of coordinated bombings claimed by ISIS has deepened a sectarian tinge to the conflict. In the latest attack, ISIS said it was behind a car bomb that exploded in Yemen’s capital Sanaa Saturday near the Qiba al-Mahdi mosque, killing two people and wounding six.

ISIS considers the Houthis, a political movement hailing from the Zaydi sect of Shiite Islam, as apostates.