Saudi Crown Prince Mohammed bin Salman has tightened his grip on power through the recent anti-corruption purge in the kingdom.

Stephen Kalin and Katie Paul report in Reuters:

RIYADH (Reuters) – Saudi Arabia’s future king has tightened his grip on power through an anti-corruption purge by arresting royals, ministers and investors including billionaire Alwaleed bin Talal who is one of the kingdom’s most prominent businessmen.

Prince Alwaleed, a nephew of the king and owner of investment firm Kingdom Holding 4280.SE, invests in firms such as Citigroup (C.N) and Twitter (TWTR.N). He was among 11 princes, four ministers and tens of former ministers detained, two senior officials told Reuters on Sunday.

The purge against the kingdom’s political and business elite also targeted the head of the National Guard Prince Miteb bin Abdullah who was detained and replaced as minister of the powerful National Guard by Prince Khaled bin Ayyaf.

News of the purge came early on Sunday after King Salman decreed the creation of an anti-corruption committee chaired by Crown Prince Mohammed, his 32-year-old favorite son who has amassed power since rising from obscurity three years ago.