A B-52 bomber crashed at Edwards Air Force Base during a test flight. All eight people on board perished. The aircraft was part of a program to modernize the oldest planes in the U.S. fleet. The cause of the crash is under investigation. The airfield remained closed as crews secured the site. The bomber was supporting a radar modernization program.

Edwards Air Force Base said emergency responders were on the scene.

The US Air Force plane crashed shortly after takeoff from Edwards Air Force Base in California.