Dozens of people were killed by an overnight Israeli airstrike on a United Nations-run school in central Gaza, authorities said, in an attack that CNN analysis found was conducted with a US-made weapon.Dozens of people were killed by an overnight Israeli airstrike on a United Nations-run school in central Gaza, authorities said, in an attack that CNN analysis found was conducted with a US-made weapon.
CNN analysis: Israel strike on UN school that left dozens dead used US munitions
