slowly advancing towards the centre of khan younis and there are reports of house to house fighting in the city. the head of the world health organization has said the war in gaza is having a catastrophic impact on health care there. tedros adhanom ghebreyesus warned health workers are having to work in unimaginable conditions in a desperate effort to help civilians. anna a n na foster anna foster has been giving us the latest. an agonising goodbye. at least 14 people were killed in an israeli strike on a school where they d been seeking safety in khan younis in southern gaza. crushed by the rubble. mohamed el rani lost his mum, dad and an unborn brother. what we want is to stop the bloodshed. every day we re losing our loved ones, says this bereaved man. those who lived. and even those still in the womb. nearby, the rumble of tank fire amid fierce street fighting continues. further south, the town of rafah is now a sprawling campsite for displaced palestinians. but even here