The situation in Gaza City is 'nothing short of cataclysmic', a UN official has told the BBC, as Israeli tanks and troops continue to advance on the third day of a ground offensive. Olga Cherevko, a spokeswoman for the UN's humanitarian office, reported a constant stream of Palestinians heading south during a recent visit to the city, noting that hundreds of thousands remained behind. The World Health Organization (WHO) warned that overwhelmed hospitals were on the brink of collapse due to restrictions on lifesaving supply deliveries. The Israeli military stated its objective was to dismantle terror infrastructure and eliminate Hamas fighters in Gaza City. The offensive has drawn international criticism, particularly as it targets one of the most populated urban areas, which is already facing famine conditions. Over 200,000 people have been displaced, finding it increasingly difficult to seek safety or adequate shelter. With reports of heavy bombardment and casualties continuing to rise, the humanitarian crisis deepens, leaving many families struggling to survive without basic needs or medical care.