As part of a Cabinet reorganization, King Salman of Saudi Arabia appointed Crown Prince Mohammed bin Salman as prime minister on Tuesday.
Mohammed bin Salman was the deputy prime minister and defense minister for King Salman before becoming the de facto ruler of the country for a number of years.
The decree said that bin Salman was replaced as defense minister by Khalid bin Salman.
The position of deputy defense minister has also been given to Mani Shaman Turki al-Habardi Al-Utaybi.
The leaders of other ministries remained in their positions.