The controversial, American and Israeli-supported Gaza Humanitarian Foundation (GHF) says it is terminating its aid operations in the affected area, after almost six months.
The group had earlier paused its multiple aid distribution centers in Gaza following the truce agreement between Hamas and Israel took effect recently.
The organization attempted to bypass the UN as the primary provider of humanitarian assistance to Gazans.
United Nations organizations and other humanitarian groups would not collaborate with its approach, stating it was improper and dangerous.
Many residents were fatally wounded while trying to acquire nourishment amid turbulent circumstances near the organization's distribution points, mostly by Israeli fire, as reported by United Nations.
Israeli authorities stated its troops fired warning shots.
The GHF said on the beginning of the week that it was winding down operations now because of the "satisfactory fulfillment of its emergency mission", with a cumulative three million shipments containing the equivalent of more than 187 million meals provided to residents.
The organization's top administrator, Jon Acree, further mentioned the US-led Civil-Military Coordination Centre (CMCC) - which has been set up to help carry out US President Donald Trump's Gaza peace plan - would be "implementing and enlarging the model GHF piloted".
"The organization's system, in which Hamas could no longer loot and profit from stealing aid, had major impact in convincing militant groups to participate and securing a halt in hostilities."
Hamas - which denies stealing aid - approved the termination of the aid organization, according to reports.
An official from stated GHF should be subject to scrutiny for the harm it caused to local residents.
"We request all worldwide humanitarian bodies to make certain that consequences are faced after resulting in fatalities and harm of many residents and covering up the nutritional restriction approach employed by the Israeli authorities."
The GHF began operations in Gaza on 26 May, a seven days following Israel had partially eased a comprehensive closure on relief and commercial goods to Gaza that persisted for nearly three months and caused severe shortages of vital resources.
After 90 days, a famine was declared in the Palestinian urban center.
The GHF's food distribution sites in southern and central Gaza were managed by United States-based protection companies and positioned in regions under Israeli military authority.
The UN and its partners said the methodology breached the basic relief guidelines of neutrality, impartiality and independence, and that directing needy individuals into militarised zones was intrinsically hazardous.
United Nations human rights division reported it tracked the fatalities of no fewer than 859 Gazans trying to acquire sustenance in the proximity to foundation locations between late May through end of July.
A further 514 persons were fatally wounded around the routes of UN and other aid convoys, it also mentioned.
The greater part of these people were lost their lives due to the Israel's armed forces, based on the agency's reports.
The Israeli military stated its forces had released alerting fire at people who approached them in a "threatening" manner.
The organization declared there were no shootings at the aid sites and accused the UN of using "inaccurate and deceptive" statistics from the Palestinian health authority administered by Hamas.
The foundation's prospects had been unclear since Palestinian factions and Israeli authorities consented a ceasefire deal to carry out the first phase of the United States' reconciliation proposal.
The arrangement specified aid distribution would take place "without interference from the two parties through the international bodies and their affiliates, and the international relief society, in addition to other global organizations not associated in any manner" with Palestinian factions and Israeli authorities.
UN spokesperson the UN spokesman declared this week that the foundation's closure would have "no impact" on its work "since we never collaborated with them".
The spokesperson additionally stated that while more aid was getting into Gaza since the halt in hostilities began on early October, it was "insufficient to address all necessities" of the 2.1 million residents.
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