Hamas official Basem Naim said on Monday to AFP that the terror group did not know which of the hostages were dead or alive. 

Basem also added that the hostages were held by many terror groups in different locations in the Gaza Strip.

According to Basem, a ceasefire is necessary for Hamas to ascertain how many and which hostages it is still holding.

The same Hamas official, in an interview with the BBC, said that the hostages "are in different areas with different groups" and Hamas "have asked for a ceasefire to collect that data [on which hostages are alive and where.]"... Read More: JPost