AN ISRAELI air strike hit a school-turned-shelter in Gaza early on Saturday, killing at least 80 people and wounding nearly 50 others, Palestinian health authorities said.

It was the latest of what the UN human rights office called “systematic attacks on schools” by Israel, with at least 21 since July 4 leaving hundreds dead, including women and children.

“For many, schools are the last resort to find some shelter,” it said after Saturday’s attack.