Saudi-led air strikes and heavy shelling between warring factions shook several cities in Yemen on Saturday, residents said, violating a United Nations humanitarian truce which took effect just before midnight. The U.N.-brokered pause in the fighting was meant to last a week to allow aid deliveries to the country’s 21 million people who have endured over three months of bombing and civil war. A coalition of Arab states has been bombing the Iranian-allied Houthi rebel movement – Yemen’s dominant force – since late March in a bid to restore to power President Abd-Rabbu Mansour Hadi, who has fled to Riyadh. Air raids pounded Houthi and Yemeni army units in the capital Sanaa and in the embattled southern cities of Taiz and Aden, where residents also reported intense artillery exchanges between the fighters and local militiamen. In Aden, one of the country’s most deprived and war-torn areas, witnesses said Houthi […]