Hundreds of Palestinians are feared to have been killed in an airstrike on a hospital in Gaza City.
Palestinians injured in the Israel-Hamas war were being treated at the hospital, while others were seeking safety after days of Israeli air strikes.
The Israeli military has denied responsibility for the attack, claiming that a rocket barrage fired by extremists struck the Al Ahli hospital which is funded by the Anglican Church.
Earlier, the United Nations said a school in central Gaza where 4,000 people were sheltering was also hit, killing at least six people.
The Israeli military insisted it was not targeting civilians, stating: "When we see a Hamas target, we will go after it”.
The US President Joe Biden is visiting Israel on Wednesday for talks on the crisis, with fears it could escalate to a wider conflict.
Clive Myrie presents News at Ten reporting by International Editor Jeremy Bowen.
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