Israel was supposed to release 620 Palestinian prisoners soon after the hostages were handed over. Officials gave no reason for the delay.

Report says terror group could transfer bodies to Egypt to be ID'd before inmates set free in two groups, as official warns ceasefire on 'brink of collapse' if logjam persists

The Israeli military says the sixth and final hostage was released by Hamas in the latest exchange on Saturday and has arrived back in Israel even as heightened tensions clouded the future of the fragile ceasefire deal.