RIYADH: A Royal Saudi Air Force fighter jet crashed during a training mission in Khamis Mushait on Wednesday killing its crew. The F-15SA aircraft, which had two people on board, crashed at 14:28 on Wednesday afternoon in the training area of King Khalid Air Base in Khamis Mushait, Ministry of Defense spokesman Brigadier General Turki Al-Maliki said. Al-Maliki added that an investigation into the causes of the accident had begun.