Aid group World Central Kitchen says seven members of its team have been killed in an Israeli strike on Gaza. The charity said the volunteers had just unloaded more than 100 tonnes of humanitarian food aid brought to Gaza by sea. The foreign nationals killed were from the UK, Australia, Poland, and a dual US-Canadian citizen.    Israel Defence Forces (IDF) spokesperson Rear Admiral Daniel Hagari offered "deepest condolences" to the founder of the charity World Central Kitchen over the "tragic" deaths of its aid workers.    Aid convoys attempting to reach northern Gaza have either been forced to turn back or simply not made the journey because the risk of being hit by Israeli fire was too great. How will the latest deaths affect the work of aid agencies in the Palestinian territory?   On the Sky News Daily, Tom Cheshire explores what working in a 'death zone' in Gaza looks like for volunteers with Ahmed Bayram, media adviser for MENA (Middle East and North Africa) at the Norwegian Refugee Council.    Plus, our Middle East correspondent Alistair Bunkall reports on whether the IDF's review of the deaths will be enough to reassure foreign governments and humanitarian organisations.   Senior producer: Annie Joyce Assistant producer: Iona Brunker Interviews producer: Melissa Tutesigensi-Charles Editor: Philly Beaumont