ISIS has seized control of large parts of the Yarmouk Palestinian refugee camp in Syria . An estimated 18,000 refugees are trapped between militant groups and regime forces . U.N. : `Yarmouk Islamic State Syria , the Yarmouk refugee camp is the deepest circle of hell ''
ISIS has seized control of large parts of the Yarmouk Palestinian refugee camp in Syria . An estimated 18,000 refugees are trapped between militant groups and regime forces . U.N. : `` In the horror that is Syria , the Yarmouk refugee camp is the deepest circle of hell ''