Prince Khalid bin Bandar bin Abdulaziz, Governor of Riyadh Region, and Prince Turki bin Abdullah bin Abdulaziz, Vice Governor of Riyadh Region, assumed their works at Riyadh Principality here today after the issuance of the Royal Orders appointing them as Governor and Vice Governor of Riyadh Region, respectively and they swore oaths yesterday before the Custodian of the Two Holy Mosques King Abdullah bin Abdulaziz Al Saud. Prince Khalid, accompanied by Prince Turki, toured the principality's departments and they were briefed on the progress of works. They called on employees to exert more efforts to serve citizens and meet their needs in the light of the directives of the Saudi leadership.