The UN human rights chief has called for an investigation into what he called Israel’s use of “high-impact explosive weapons” in Gaza, which he said were causing indiscriminate destruction in the besieged Palestinian enclave.

Volker Turk, the UN High Commissioner for Human Rights, said Israel must end its use of such weapons in the densely populated area, home to 2.3 million Palestinians, half of whom have been displaced by fighting in the last month.

Turk did not specify what weapons he was referring to.