U.S. authorities have released two men who flew a small plane into restricted airspace over Washington and caused a brief evacuation of the White House, U.S. Capitol and other government buildings.
The government says it did not file charges against the men after determining Wednesday's incident was a mistake.
The men were questioned for several hours after their plane was turned away from Washington and escorted to a landing strip in nearby Frederick, Maryland.
A White House spokesman Scott McClellan said the plane came about five kilometers from the White House before veering away.
He said the pilot did not respond to aviation officials, and fighter jets fired warning flares to get the pilot's attention. President Bush was not at the White House at the time of the incident.