ISLAMABAD, Pakistan 

The crash of C-130 plane near the Pakistani city of Bahawalpur, 531 kilometers (330 miles) south of Pakistani capital Islamabad on Aug. 17, 1988, killing country’s President and Army Chief Gen. Muhammad Ziaulhaq continues to remain shrouded in mystery. The crash also killed U.S. Ambassador Arnold Lewis Raphel and several other top Pakistani military officials.

Over the past three decades, many people speculated about the sabotage, believing that explosives were hidden in a crate of mangoes loaded on the plane in Bahawalpur. But the Pakistani and the U.S. authorities have repeatedly denied and described the crash an accident.

Read more: Demystifying death of former Pakistani President Ziaulhaq