 Live from NPR News in Washington, I'm Dave Mattingly. An Israeli airstrike is blamed for the deaths of at least 25 people in southern Gaza. More than 50 others were wounded. The health ministry in Gaza says the strike hit a school where displaced Palestinians were sheltering. As NPR's Aya Batraoui reports, the U.N. says it was one of several schools hit by the Israeli military in recent days.