At least 22 children and four women were killed in Yemen on Friday from an airstrike by the Saudi-led coalition, the U.N. reported.

The details: Under-Secretary-General for Humanitarian Affairs and Emergency Relief Coordinator, Mark Lowcock, called for an investigation of the most recent attacks in Yemen. This comes two weeks after a strike killed dozens of civilians, many of them children, and an additional strike on Thursday that resulted in the deaths of four children per the U.N. Go deeper: America's role in Yemen's disaster