Since the offensive began earlier this month, hundreds of people have been killed, according to Gaza’s Ministry of Health, with more than 60,000 others displaced again, many fearing they may never return.

Civilians are reportedly trapped under rubble, while the sick and wounded lack access to life-saving care. They also face severe shortages of food and shelter, amid reports of family separations and mass detentions.

“The plight of Palestinian civilians trapped in North Gaza is unbearable,” read a statement from the UN chief’s Spokesperson.

Mr. Guterres warned that the “widespread devastation and deprivation” caused by Israel’s military operations – particularly around Jabalya, Beit Lahiya and Beit Hanoun – have made life “untenable” for the Palestinian population there.

Despite repeated efforts to deliver essential humanitarian supplies, including food, medicine, and shelter, access continues to be denied by Israeli authorities, with few exceptions, putting countless lives in jeopardy.

Adding to the crisis, the postponement of the final phase of the polio vaccination campaign in northern Gaza has endangered thousands of children.

Little regard for international law

“This conflict continues to be waged with little regard for the requirements of international humanitarian law,” the statement noted.

Mr. Guterres emphasised that the parties to the conflict must respect and protect civilians, including humanitarian workers and first responders, whose essential work must be facilitated and protected, not impeded and jeopardized.

“In the name of humanity, the Secretary-General reiterates his calls for an immediate ceasefire, the immediate and unconditional release of all hostages, and accountability for crimes under international law,” the statement concluded.

Catastrophic situation

On Saturday, other top UN officials echoed the urgent calls for a halt to Israel's military actions in northern Gaza.

Joyce Msuya, acting Under-Secretary-General for Humanitarian Affairs, warned that the entire population of northern Gaza is “at risk of dying”, calling for an immediate stop to “blatant disregard for basic humanity” by Israeli forces.

Meanwhile, WHO Director-General Tedros Adhanom Ghebreyesus described the situation as “catastrophic”, highlighting the collapse of Gaza’s healthcare system amid ongoing attacks on hospitals and healthcare workers, calling for an immediate ceasefire to save lives.