Chris Morris reports from damaged school in Gaza
Media playback is unsupported on your device
Video

Gaza: 'Terrible scene' in UN-run school hit by Israeli fire

Israel launched a deadly attack on a UN school housing refugees in Gaza despite repeated warnings that civilians were sheltering there, the UN has said.

UN spokesman Chris Gunness said "the world stands disgraced" by the attack, in which 15 were reported killed.

The Israeli military said an initial inquiry suggested soldiers responded after militants had fired mortar shells "from the vicinity of the [UN] school".

Chris Morris reports from the school in Gaza.

Go to next video: UN urged Israel not to target refuge