A U.S. Air Force bomber jet from Ellsworth Air Force Base in South Dakota crashed during a training mission on Jan. 4, officials have confirmed.
All four of its crew members onboard were able to eject safely. Officials did not say if any injuries were reported.
The cause of the incident is unknown, and officials did not provide further details.
However, visibility was poor with freezing temperatures and low clouds at the time of the crash, according to automated weather reporting equipment recording airfield conditions.
A board of Air Force officers will be investigating the accident, officials said.
The 28th Bomb Wing, located at Ellsworth Air Force Base, is one of two bases responsible for the operation and maintenance of the B-1B Lancer.
The wing is aligned under Air Force Global Strike Command.
It first came into service in the 1980s and has been used to support the U.S. bomber presence in Iraq and Afghanistan. It does not carry nuclear weapons.
The bomber jet’s “blended wing/body configuration, variable-geometry wings, and turbofan afterburning engines combine to provide long-range, maneuverability, and high speed while enhancing survivability,” according to the Air Force.
Osprey Crash
The latest incident comes shortly after the U.S. Air Force recovered the black box from the CV-22B Osprey crash off the coast of Japan in November that claimed the lives of eight airmen.Officials said Thursday that the black box will be transported to laboratories for data retrieval and an analysis of the data will likely take several weeks.
According to officials, the aircraft departed Marine Corps Air Station Iwakuni, in Yamaguchi prefecture. However, shortly after takeoff, the crew of the Osprey contacted the Coast Guard requesting an emergency landing at the Yakushima airport
Following the emergency call, the aircraft then disappeared from the radar.
All eight on board were subsequently confirmed dead, although Air Force officials have so far only been able to recover the remains of only seven of the airmen.
The crash has resulted in the grounding of all Osprey aircraft not engaged in emergency recovery operations, pending a probe into the safety of the aircraft.
Officials said last month that preliminary information suggests that a “potential materiel failure” was behind the crash, although they stressed that the “underlying cause of the failure is unknown at this time.”