Meanwhile, the United Nations says more than 800,000 people have now fled rafah, in southern gaza. Many have been forced to head northwards, to areas which the United Nations says have little clean Drinking Water or sanitation, as the Israeli Offensive continues. 0ur Diplomatic Correspondent paul adams sent this report. Street battles injabalia. Israeli forces have been fighting here for days. Gunfire hamas, they say, is back, and needs to be dealt with. This is dangerous urban warfare, at close quarters. The israelis were here months ago and moved on. These, some warn, early signs of an insurgency that could last for months. Israel has been attacking from the air too. Scenes today reminiscent of the war s terrifying early stages. Buildings flattened, bodies trapped under the rubble. Gunfire more Street Battles this time, in the south. The israeli army still advancing on rafah, the only city yet to experience a full scale assault. But 800,000 palestinians have already fled the area, to