DOZENS died when an airstrike hit a UN-run school used as a shelter in Gaza yesterday, witnesses said.
Survivor Ahmed Radwan called scenes at al-Fakhoura in the Jabalia refugee camp “horrifying”.
He added: “Corpses of women and children were on the ground. Others were screaming for help.”
Israeli top brass said they were investigating footage of the aftermath appearing to show casualties.
Their spokesman Lt Col Peter Lerner said: “I can’t confirm this incident is IDF. We’re looking into it.”
The Israeli military had warned Jabalia residents to leave.
It said troops were in the area “with the aim of hitting terrorists”.
The UN’s Philippe Lazzarini said: “Receiving horrifying images and footage of scores of people killed and injured in another UN school sheltering thousands of displaced.
“Civilians cannot and should not have to bear this any longer.”
Meanwhile, Israel yesterday expanded its war on terror after urging residents in the southern Gaza city of Khan Younis to evacuate.
Troops opened a humanitarian corridor and paused military action.
An airstrike on a residential block killed at least 26, medics said.
And patients and staff at Gaza’s al-Shifa hospital joined the exodus, leaving behind a skeleton crew to care for 120 people too ill to travel.