All eight people aboard a US B-52 bomber that crashed in California on Monday are feared dead, Edwards Air Force Base said.
The crash happened around lunchtime at the base, a major operations center for the US military around 60 miles north of Los Angeles.
Initial indications are that the crash was not survivable, with pictures from the scene showing the aftermath of a large fire that appeared to have destroyed the aircraft.
The B-52 is a heavy bomber that first flew in 1954 and was originally designed for war with the Soviet Union.
It has received continual upgrades to keep it in service for decades since the Cold War's end.
