A Delta Airlines jet making an emergency landing at Los Angeles International Airport dumped fuel on the playground of an elementary school in the flight path on Tuesday, inflicting minor injuries on 17 children and nine adults, local and federal authorities said.

According to the Los Angeles County Fire Department all of the injuries were said to be minor and none of the victims needed hospitalization.

The Federal Aviation Administration said in a separate statement that it was "thoroughly investigating the circumstances" behind the incident and suggested the flight may not have followed fuel-dumping rules.