More than a dozen children were injured after an airplane dumped fuel while flying above a playground at Park Avenue Elementary near Los Angeles, California, on Tuesday.

Just before noon, nine teachers and 17 children were injured after a flight leaving Los Angeles International Airport airport ejected fuel, which splattered the children during their afternoon recess. The airplane, a Delta Air Lines Boeing 777, was headed toward Shanghai when it started experiencing mechanical problems. The flight returned to LAX and landed safely.