The UN’s top human rights body will hold a special session to discuss “the deteriorating situation in the occupied Palestinian territories” after the killing of 60 Palestinians by Israeli troops at mass border protests on Monday.

The meeting comes as the office of the prosecutor of the world’s permanent war crimes court on Wednesday expressed “grave concern” about escalating violence in Gaza, and said alleged crimes could be investigated.

More than 100 people have been killed by Israeli fire since the protests began on 30 March, drawing international accusations that Israel is using excessive force, however Israel says it is rightfully defending its sovereign border.