UN chief says Palestinians enduring ‘cruellest phase’ of Gaza conflict – as it happened

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Here are some of the latest images being sent to us over the newswires from Gaza, where relentless Israeli attacks are continuing to kill civilians across the territory:

Aid workers are wrestling with moves by Israel and the US to impose a controversial new aid system for Gaza, which would limit distribution to a few locations and put it under armed private contractors - to prevent theft by Hamas, Israel says.