it comes as a senior un aid official warned that half of gaza s population is starving, saying deliveries of food are now almost impossible because of the fierce fighting and aerial bombardment. our middle east correspondent yolande knell has the latest. the misery of life under canvas. fourin the misery of life under canvas. four in five gazans have now fled their home and they are still fighting to survive, with severe shortages of food and drinking water. aid agencies say they are struggling to deliver the basics, even close to the egypt order where supplies come in. supplies come in. humanitarian aid at the moment supplies come in. humanitarian aid at the moment is supplies come in. humanitarian aid at the moment is the supplies come in. humanitarian aid at the moment is the only - supplies come in. humanitarian aid at the moment is the only lifeline l at the moment is the only lifeline for people and we are simply not able to get the access that we need to get t