There has been a delay in the expected release of some 50 Israeli hostages. The deal is still being finalised in Qatar, where senior Hamas leadership is based. A high-ranking member of Israel's Mossad secret service is there talking to Hamas. The deal, as publicised thus far, involves 50 hostages being swapped for 150 Palestinian prisoners. Described as terrorists by Israel, they are mainly women and youngsters aged between 16 and 18. The hostages to be freed are also women and children.