A fighter from forces of the UN-backed Libyan government fires at east-based troops during clashes in Salah Al-Din frontline, Tripoli, Libya, on May 6, 2019. A total of 432 people have been killed and 2,069 others injured in the fighting between the UN-backed Libyan government and the east-based army in and around the capital Tripoli, the World Health Organization (WHO) said Monday. (Xinhua/Amru Salahuddien)