The RQ-4 American reconnaissance was worth nearly 150 million USD to crashing into the ground while returning to the base, but it was unclear the cause of the accident.

A drone aircraft RQ-4 Global Hawk in the morning of August 6 on the Grand Forks base in North Dakota after a task of duty.

Local officials said the Field of Fields were extinguished and the US Air Force was planning to bring the plane back to the base.

RQ-4 American reconnaissance take off in Italy in 2018. Photo: USAF.

The force of the current reconnaissance team 319 was present, aircraft recall and surveys can last weekly, Colonel Jeremy Fields, deputy commander No. 319, the agency to operate the machine

RQ-4 Global Hawk is UAV revised long-range reconnaissance by the US, equipped with synthetic aperture radar systems (SAR) and modern electronic reconnaissance - infrared.

The RQ-4 line was produced in 1998 and played an important role with US military campaigns in the world.

The Global Hawk line had 4 incidents that made the aircraft completely destroyed, the nearest accident happened off Spain in 2018. Iran in June 2019 shot down a prototype RQ-4N worth 230