While Abdallah ibn Ali remained in Palestine, he dispatched his brother, Salih ibn Ali, along with Abu Awn to continue the pursuit of Marwan II, who fled to Egypt in May/June 750. Salih and Abu Awn invaded the country, and in August 750 the last Umayyad resistance was crushed at Busir, with Marwan II and many of his followers being killed.[1][9] Salih became the new governor of Egypt, and was succeeded by Abu Awn in 751. Abu Awn served as governor until 753, when Salih returned to the post, and again in 755–758.[10][11]