After the December 2014 Peshawar school massacre, Pakistani authorities hastely cracked down on Afghan refugee settlements to apprehend illegal immigrants. At least 30,000 Afghans left for Afghanistan, of whom nearly 2,000 were deported due to a lack of legal documentation. In February 2015, over 1,000 Afghans per day were reportedly returning to Afghanistan at Torkham Crossing. By September 2015, over 137,000 Afghans had returned to Afghanistan.