Fighters of the UN-backed Government of National Accord (GNA) are seen during clashes with the east-based Libyan National Army (LNA) at the Al-Yarmook frontline in Tripoli, Libya, on Aug. 9, 2019. The United Nations Support Mission in Libya (UNSMIL) on Thursday called for a humanitarian truce between the rival parties in Libya, as the armed conflict in the capital Tripoli continues between the UN-backed government and the east-based army. (Photo by Amru Salahuddien/Xinhua)