LONDON. June 19. KAZINFORM Saudi Arabia's King Abdullah 89, has appointed his brother Prince Salman, the defence minister, as crown prince and heir apparent, ensuring a smooth succession for the world's biggest oil exporting country.

The appointment, reported on state television, was announced in a royal decree one day after the burial of Crown Prince Nayef, the interior minister, who died on Saturday.

Crown Prince Salman becomes Abdullah's third heir after the deaths of two elder brothers in the past eight months. He has built a reputation for pragmatism and is seen as likely to continue the king's cautious domestic reforms.

Prince Ahmed bin Abdulaziz, a younger brother of both Salman and Nayef, was named as the new interior minister after spending several decades as deputy interior minister.

The new crown prince will keep the defence portfolio and has been appointed deputy prime minister to King Abdullah, the royal decree said.

Salman, 76, a half-brother of Abdullah, is likely to continue with cautious social and economic reforms as well as Saudi Arabia's moderate oil pricing policy, analysts said before his appointment.

He would also be likely to maintain the kingdom's alliances with western and Sunni Muslim states, they said, Kazinform quotes the Guardian.