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An F-16 fighter jet crashed during a night training mission in Arizona on Wednesday night, killing the pilot and sparking a brush fire.

The pilot was an Iraqi trainee, two U.S. military officials told NBC News. The officials said the unidentified trainee was at a very advanced stage in his training and was refueling when the incident happened.

The pilot was the only person on board, officials said.

The aircraft came down at around 8 p.m. local time (11 p.m. ET), five miles east of Douglas Municipal Airport. The border town is about 230 miles southeast of Phoenix, just north of Mexico.

F-16 Airplane crash outside of Douglas! Big explosions and fire pic.twitter.com/CJ3gyYTTMl — Angel Ortega (@or12tega) June 25, 2015

U.S. Army personnel from Fort Huachuca were sent to secure the crash site until Air Force officials arrived.

The crash sparked a brush fire, Douglas Fire Department Lt. Matt King told NBC News.