The southern Gaza Strip is currently facing its “worst bombardment” since the beginning of Israel’s brutal aggression against the Palestinian territory, says a spokesperson for the UN Children’s Agency (UNICEF).

“I am seeing massive child casualties,” James Elder wrote in an X post on Sunday. “We have a final warning to save children; and our collective conscience.”

In a separate video message from the Nasser Hospital in the southern Gaza city of Khan Yunis, Elder said he felt like he was “running out of ways” to describe the horrors children face in the Israeli-besieged territory.

“I feel like I’m almost failing in my ability to convey the endless killing of children here,” he added.

Israel resumed its brutal onslaught on Gaza early Friday after declaring an end to a week-long humanitarian truce.

The regime’s military also stepped up its attacks in southern Gaza, which was earlier declared a “safe zone”.

Currently, only half of Gaza’s 36 hospitals are minimally to partially functional. They are all overflowed with dead and wounded people amid an acute lack of fuel and medical supplies.

UN High Commissioner for Human Rights Volker Türk also warned on Sunday that nowhere is safe in Gaza amid Israel’s fresh raids and evacuation orders.

“As a result of Israel’s conduct of hostilities and its orders for people to leave the north and parts of the south, hundreds of thousands are being confined into ever smaller areas in southern Gaza without proper sanitation, access to sufficient food, water and health supplies, even as bombs rain down around them,” he said. “I repeat, there is no safe place in Gaza.”