ISIS publicly executes two 'spies' and CRUCIFIES another as armed insurgents and young boys watch on

Images have emerged showing two alleged spies kneeling on the ground as hundreds of masked insurgents surround them (right). Another picture shows a deceased man crucified to a post (left) in what is believed to be the Syrian city of Al-Bab. On Thursday, the extremist group announced it was holding another man who they claim posed as a foreign fighter to spy on them for Israel's intelligence agency, Mossad. The Israeli government and Muhammad Musallam's father denied the allegations against him.