Saudi Arabian King Salman has pledged continuity, hours after his accession to the throne following the death of his half-brother, KingAbdullah.
The new king moved swiftly to appoint heirs and ministers, including one prince from the ruling dynasty's third generation.
King Abdullah died overnight, weeks after being admitted to hospital with a lung infection.
He was buried in an unmarked grave in Riyadh, following Friday prayers.
His burial was conducted in line with the traditions of Wahhabism - the ultra-conservative form of Sunni Islam followed by the kingdom - where funerals are austere and simple.
King Abdullah's body was wrapped in a shroud and taken by ambulance to the Imam Turki bin Abdullah mosque in Riyadh.
Following prayers, which were attended by Gulf heads of state as well as foreign leaders including Turkish President Recep Tayyip Erdogan and Pakistani Prime Minister Nawaz Sharif, his body was taken to a public cemetery and buried.