State officials are investigating the use of a Department of Justice helicopter at a high school homecoming football game in Northern California.

KCRA-TV reported Thursday that top officials at the DOJ did not know the helicopter -- usually flown for drug busts -- was being used to hover over the game in El Dorado Hills.

The incident was caught on video and uploaded to YouTube. The station says it showed a DOJ agent dropping a football from the helicopter to his son, a player, on the field.

The cost to taxpayers for use of the chopper was between $900 and $1,300 for the stunt, not including the cost of personnel used to fly the aircraft.