 Complete the following phrase:  When the battle ended, 500,000 refugees and internally displaced persons returned to Aleppo, and Syrian state media said that hundreds of factories returned to production as electricity supply greatly increased. Many parts of the city that were affected are undergoing reconstruction. On 15 April 2017, a convoy of buses carrying evacuees was attacked by a suicide bomber in Aleppo, killing more than 126 people, including at least 80 children. Syrian state media reported that the Aleppo shopping festival took place on 17 November 2017 to promote industry in the city. A YPG commander stated in February 2018 that Kurdish fighters had shifted to Afrin to help repel the 