RIYADH (Dispatches) – Saudi Crown Prince Mohammed bin Salman is building a secret jail under his palace in Jeddah to imprison his opponents, Arab media reports have revealed. "A secret prison will be built at al-Salam palace; at present, 10 stories have been constructed under the palace with solitary cells, some of them completely covered in dark," the Arabic-language al-Ahd al-Jadid news website wrote on its twitter page on Wednesday. It noted that the prison will be used for occasions like what happened in Ritz-Carlton hotel when it was closed to business and became a detention center for those detained in line with the MbS' crackdown on the opponents in November 2017. The Arab paper went ahead so far to say that "Bin Salman, himself, intends to supervise the interrogation and torturing operations". There is yet no other source to confirm the al-Ahd al-Jadid's report. The Ritz-Carlton Hotel in Riyadh, hosted hundreds of rich and once-powerful Saudis who were detained in what the Saudi regime called an anti-corruption campaign. Billionaires, royals and bureaucrats who were considered a danger to bin Salman still remain locked up, including Prince Turki bin Abdullah and former economy minister Adel Fakeih, a key architect of the kingdom’s transformation plan. Some are now in the al-Ha'er prison, a maximum-security facility south of the capital where many extremist militants are incarcerated. Early in 2018, the Saudi attorney general said 56 men remained locked up, some the subject of criminal investigations, with more than $106 billion in cash, real estate, businesses, securities and other assets recovered in the Ritz operation.