(Reuters) – The chief executive of Saudi Telecom Co , Saud al-Daweesh, has resigned, two company sources said on Monday.

The sources, speaking on condition of anonymity, did not give a reason for Daweesh’s resignation, which has not yet been announced on the Saudi bourse website.

Saudi Telecom is majority government-owned and held a monopoly on telephony business inside the kingdom until reforms opened up the sector in the last decade.