According to the Saudi press, the royal order was issued at Prince Bandar's request.
General Yousef Bin Ali Al-Idrisi, who had served as Prince Bandar's deputy since 2012, was appointed as his replacement.
Prince Bandar previously served as Saudi ambassador to Washington and was appointed Chief of General Intelligence in July 2012. Since early 2014, the prince was on medical leave.
It is unclear what medical condition the prince was suffering from although there was some speculation by a source who spoke to Al Arabyia News in March that it was related to a shoulder injury and recover from a subsequent "delicate surgery."
[Al Arabiya News]