Malik al-Dowaish was arrested this month following years of campaigning for the release of his father, who was himself detained in 2016 after he gave a sermon seen as critical of the Saudi Arabian royal family, two sources familiar with the matter said.
"I really don't know the secret behind my father's arrest," Dowaish said, in a video that he recorded before his arrest and seen by Reuters. "But it is very strange that he has not been tried so that a court could look at any charges that have been brought against him."
