Rampaging Palestinian militants have recaptured up to 90 per cent of Yarmouk camp . 100 Palestinian refugees have been killed or captured since Wednesday . Two members of a Hamas - linked group were beheaded , he said . Now Gaza - linked militants have sworn bloody revenge on ISIS terrorists .
Rampaging ISIS militants have seized up to 90 per cent of Yarmouk camp . 100 Palestinian refugees have been killed or kidnapped since Wednesday . Two members of a Hamas-linked group were beheaded , witnesses said . Now Gaza-based leaders have sworn bloody revenge on ISIS terrorists .