This moment, recorded by an AFP photo reporter, has shaken social media users, enraging them as children suffer because of the war waging.
AFP states that the school was damaged in an air strike during fighting between Saudi-backed government forces and Huthi rebels.
The photo was taken on September 3, the first day of school in Yemen, according to the agency.
The war had turned Yemen into the battlefield of the world's worst humanitarian crisis. UN welcomes those announcements, while the Saudis expect actions, not words, Deutsche Welle reports.
The Saudi-led coalition launched a military operation north of Yemen's port city of Hodeidah against what it described as "legitimate military targets", Saudi state TV Al Ekhbariya informs, as Reuters reports.
The coalition said it had called on civilians to stay away from the area and said the operation was carried out in accordance with humanitarian law.