In Yemen, at least 10 people were killed and over two dozen injured Sunday — including children — after Houthi rebels fired ballistic missiles into a religious school and mosque in the central province of Marib. The attack came one day after a powerful explosion tore through the gate to Aden International Airport, killing at least 12 people and wounding many others. Witnesses said the source of the blast was a small truck carrying fuel; it’s not known if the explosion was intentional.

Ali Ba Isheen: “The explosion occurred after the Maghrib prayer and injured my two cousins in this grocery store. We have a library and a pharmacy behind the shop, and they killed children and women and terrified passersby and frightened safe people.”

The latest violence comes as the United Nations warns more than 20 million Yemenis — or two-thirds of the population — are in need of humanitarian assistance.