After occupying Alexandria in 643, they swept along the Mediterranean coast of Africa, taking Cyrenaica in 644, Tripolitania in 646 and Fezzan in 663.[5] The region around Awjila was conquered by Sidi 'Abdullāh ibn Sa'ad ibn Abī as-Sarḥ.[2] His tomb was established in Awjila around 650.[6][lower-alpha 2]