In 737 Uqba ibn al-Hajjaj sent over an expedition to help the Muslim governor of Narbonne in his fight against the Frankish Charles Martel, but the expedition was routed by the Carolingian leader in the Battle of the River Berre. In 739 (or 740) the governor imposed a garrison and direct central rule in Pamplona, an outpost that may have been held up to that point by the Franks (or probably Basque-Aquitanians) since the aftermath of the Battle of Poitiers (732).