The Israeli army said its troops shot and killed three hostages on Friday after "mistakenly" identifying them as a threat. 'The conditions in Gaza are very difficult for the soldiers going in there,' said Rob Parsons, France 24 Chief Foreign Editor in Tel Aviv, Israel. "Narrow streets which in many cases have been destroyed, plenty of opportunities for ambushes by Hamas of the Israeli Defence Forces and down in the tunnels as well where they may suspect hostages being held as well."