Rahim Al-Hussaini was named Wednesday as the new Aga Khan, spiritual leader of the world’s millions of Ismaili Muslims, following the death of his father.

Rahim Al-Hussaini was named Wednesday as the new Aga Khan, spiritual leader of the world's millions of Ismaili Muslims. The 53-year-old succeeds his father, who died on Tuesday.

A burial service for Aga Khan IV, the 49th hereditary imam of the Shiite Ismaili Muslims, was held in the southern Egyptian province of Aswan on Sunday. After a procession through the streets, his body was carried down the Nile in a white boat.

The Aga Khan IV was laid to rest on Sunday at a private ceremony in Aswan, Egypt. The death of Prince Karim – the 49th hereditary imam of the Shiite Ismaili Muslims – was announced Tuesday by the Aga Khan Development Network and the Ismaili religious community.

Prince Karim, Aga Khan IV, was laid to rest in a private ceremony in Aswan, Egypt. His son, Rahim Al-Hussaini, has been named Aga Khan V, continuing the Ismaili Muslim spiritual leadership. World leaders attended a service in Lisbon.