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Drought, chronic economic instability, and escalating conflict areÌýcreating a "dangerous deepening of humanitarian need", according toÌýa UN report published on Monday.

Even before the on 15 August, nearly half of the population - over 18 million people - needed humanitarian and protection assistance, the UN's Office for the Coordination of Humanitarian Affairs (OCHA) said.

"The recent escalation in conflict and resulting upheaval has only exacerbated needs and further complicated an extremely challenging operation context," read theÌýOCHA report. "The humanitarian situation in Afghanistan was one of the worst in the world."ÌýÌýÌý

Over $600 million is requiredÌýto support millions of Afghans who areÌýandÌýare unable to access basic medical services, the UN agency said.

Afghanistan is currently experiencing its second severe drought in four years, impacting one-third of its population, as well as uncertainty about whatÌý might hold in the long term.

have endured the brunt of this humanitarian crisis, OCHA said.

In June and July alone there was a 10 percent reduction in the number of women and girls seeking medical and other forms of care due to restrictions on their fundamental rights, according to the UN agency.Ìý

Ìýhave also become a mechanism for Afghans to survive, as has increased reliance on child labour, the report said.

OCHA spokesperson Jens Laerke told a briefing in Geneva on Tuesday that international donors need to step up in order to provide the vital food and medical aidÌý11 million Afghans will requireÌýfor the rest of the year.Ìý

"Basic services in Afghanistan are collapsing and food and other lifesaving aid is about to run out," he said. "We urge international donors to support this appeal fast and generously."

Ìýpromised last month to provide £286 million to the crisis in Afghanistan, doubling the amount of assistance itÌýoriginally pledged but still giving less than it donatedÌýin 2019.Ìý