An official source at the Ministry of Defense and Aviation said on Monday (May 23,2011) that a RSAF F-15 while flying on a training exercise around the 'Training Zone' at King Abdulaziz Air Base in the Eastern Province crashed, resulting in the death of Pilot Officer Saif Bin Abdullah Al-Juwaihel. "The related investigation is underway to find the causes of the accident," the source said. "May Allah accept the Pilot Officer Saif Bin Abdullah Al-Juwaihel and bestow patience upon his family and relatives," the source added.