The third Saudi relief plane heading for Mauritania left Riyadh today, as part of the relief airlift ordered by the Custodian of the Two Holy Mosques King Abdullah bin Abdulaziz to help alleviate the sufferings of flood-stricken people in the Mauritanian city of Al-Taintan. Taking off from King Khalid International Airport, the plane was laden with 74 tons of foodstuffs and tents.