From egypt overnight. This after an initial convoy of 20 trucks the previous day. The United Nations has warned of a humanitarian catastrophe among Paletsinian Civilans with no access to fresh water, food aid or medicines. Israel tightened its blockade on gaza 15 days ago following an unprecedented massacre of civilians on its territory. The rafah crossing is on the egyptian border, and its the only route into gaza that doesnt border israel. That means its currently the only entry point for aid. Israel is warning its Military Campaign against hamas could last several months. The Israeli Defence forces say the next stage, a widely anticipated ground offensive, would happen soon. With more, heres our correspondent yolanda knell. A sleepless night in gaza. From afar, the flashes of successive israeli air strikes in gaza city as israel steps up its bombing campaign. And amid more and more destruction, and a mounting death toll, the un is warning of a catastrophic humanitarian situation. Ov