Photos and video posted online showed the business jet diving nose first to the ground and exploding. In a radio call, a pilot said the plane was descending at 20,000 feet per minute.
Two British men were charged Tuesday over a suspected plot targeting a base used by the United States. Prosecutors believe they were directed by a man working for Iran.
The U.S. Army is training Apache pilots to shoot down drones as militaries around the world assess the efficacy of 20th-century technologies in a new era.