Officials say Turkey's president, who flew to the United States to attend the funeral of Muhammad Ali, is cutting short his visit and returning home.

His office on Friday did not give an explanation as to why Recep Tayyip Erdogan was returning early.

Private Dogan news agency reported that the Turkish leader was upset that funeral organizers rejected his request to lay a piece from the cloth covering the Kaaba, in Mecca, on Ali's coffin. They reportedly also denied a request for Turkey's top cleric to read from the Quran.

Erdogan attended a prayer ceremony for Ali on Thursday but would not take part in Friday's funeral.

Erdogan and Jordan's King Abdullah were scheduled to speak at the funeral but lost their spots when two other speakers were added later.