LEBANON-PALESTINIAN-CONFLICT-REFUGEE

A picture taken on April 12, 2017 shows spent bullet casings lying on the ground at Ain al-Hilweh camp, Lebanon's largest Palestinian refugee camp, near the southern coastal city of Sidon, after clashes that took place earlier in the week between an extremist group and the security force. Fighting erupted on April 7, 2017 after Palestinian factions deployed throughout the camp as part of a joint security force aimed at combatting the influence of a local Islamic extremist group. Ain al-Hilweh, which houses 61,000 Palestinians, is home to multiple armed factions and has been plagued by intermittent clashes among them as well as against smaller extremist groups. Lebanon's army does not enter Palestinian refugee camps, where security is managed by joint committees of Palestinian factions. (Photo by STRINGER / AFP) (Photo by STRINGER/AFP via Getty Images)