A Libya Dawn fighter shoulders a rocket-propelled grenade (RPG) launcher at a checkpoint near Sirte March 17, 2015. The Libya Dawn armed group backs the self-declared government in the capital Tripoli. Islamic State has been exploiting the turmoil in Libya, where the internationally recognised government of Libyan Prime Minister Abdullah al-Thinni and the administration in Tripoli and their respective allies are fighting for power. REUTERS/Goran Tomasevic (LIBYA - Tags: CIVIL UNREST POLITICS MILITARY)