Saudi Arabia’s Crown Prince Nayef has been buried after sunset prayers in the holy city of Mecca.
Leaders of Arab states joined King Abdullah in paying their last respects to his 78-year-old heir, who died on Saturday in Geneva.
There is now speculation over who will succeed the 89-year-old monarch in the ageing al-Saud dynasty. A previous crown prince, Sultan, died last October.
The most likely candidate is 76-year-old Prince Salman, who is seen as more likely to continue the king’s cautious reforms than the conservative Nayef.