Saudi King Replaces Crown Prince in Cabinet Reshuffle

The reshuffle was announced by royal decree via state television early on Wednesday.

Salman relieved Crown Prince Muqrin from his post, which was reportedly done upon his request. Mohamed bin Nayef, 55, the grandson of the founder of Saudi Arabia, was appointed as crown prince and also minister of interior.

Al Jazeera reporting from Jizan in the country's south said the moves represented a major change in Saudi Arabia.

This is the first time that a grandson of the founder of the country (Ibn Saud), rather than a son, is appointed crown prince, the report said.

Khalil Jahshan, the executive director for the Arab Centre of Washington from Fairfax, Virginia, said that the reshuffle constitutes a "political earthquake of the greatest magnitude".

"The Saudi Arabia we knew a few hours ago is no longer," Jahshan told Al Jazeera, adding, "These are serious changes that will have repercussions not only domestically but also internationally."

"This is a very decisive answer by King Salman to the doubts that many experts have expressed since he came into power with regards to his health, his decisiveness and his control over political matters in the kingdom. And this is his unequivocal answer."

King Salman also appointed his son, Prince Mohammed bin Salman, as deputy crown prince, and replaced veteran foreign minister Prince Saud al-Faisal with the kingdom's Washington ambassador Adel al-Jubeir.

Faisal "asked to be relieved from his duties due to his health conditions," said the royal decree published on the official Saudi Press Agency, adding that he was appointed as an adviser and a special envoy of King Salman, as well as a supervisor on foreign affairs.

Jubeir has shone recently as he spoke frequently to reporters in the United States in defence of his country's decision to form a coalition launching air strikes on houthis in Yemen.

Faisal was first named in 1975, making him the world's longest-serving foreign minister.