The successor to Sultan Qaboos bin Said, the late leader of the Oman Sultanate, has been named, the Japan Times has reported.

Do you have a lead on a newsworthy story? Share news tips with us here at Hivisasa!

Haitham bin Tariq Al Said, who is the late's cousin and the sultanate's culture minister, has been named as the successor.

The name was revealed after a letter containing the name, authored by Qaboos himself, was opened and read to the public.

"Haitham bin Tariq was sworn in as the new sultan of the country ... after a meeting of the family which decided to appoint the one who was chosen by the sultan," the government said.

In his speech, the newly installed leader promised to continue on the trajectory of peaceful coexistence that has been the foundation of Oman's foreign policy.

"We will continue to follow in the same course the late sultan adopted … embracing foreign policies based on peaceful coexistence among peoples and countries without any interference in the domestic affairs of other states," he said in a speech broadcast on state television.

"We will continue as always … contributing and calling for peaceful and amicable solutions for all disputes. The least we hope for is to follow in his [Qaboos] footsteps and remain guided by his wisdom into the future, and preserve … the achievements he made," Sultan Haitham bin Tariq added.

President Uhuru Kenyatta was among the world leaders who mourned the death of Qaboos.

"President Uhuru Kenyatta has sent a message of condolence and encouragement to the people of the Sultanate of Oman following the death of His Majesty Sultan Qaboos bin Said al Said, " statehouse said.