Palestinian health officials said [more than 500 people](https://ift.tt/caqDQ7b) were killed in an Israeli strike on a Gaza hospital, while Israel said the explosion was caused by a Palestinian rocket. Here’s what we know so far: **Who bombed the Al-Ahli Arab Hospital in Gaza?** Palestinian officials blamed the blast on an Israeli airstrike. The Israeli military said it was caused by a rocket fired by Palestinian Islamic Jihad, a militant group based in Gaza.
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