A Saudi religious court has convicted a Lebanese man of claiming to be a prophet and sentenced him to four years imprisonment.

A judicial official in the city of Medina's court says Lebanese national Tony Nassar was found guilty of claiming prophethood.

Such claims are deemed blasphemous in the conservative kingdom.

The official, who spoke on condition of anonymity Monday because he was not authorized to speak to the press, said Nassar was arrested by Saudi religious police who confiscated books from him with polytheistic themes and pornographic videos.

Muslims believe that Muhammad is the last in a series of prophets and deny any prophet can follow him.