UN Secretary General Ban Ki-moon announced on Tuesday that it was unable to deliver humanitarian aid to 4.6 million Syrians located in rural areas, mostly controlled by ISIS, in July.
The UN and other humanitiarian relief organisations managed to deliever only 29 of the 127 aid last month. However, this was only a small portion as there is currently a population of 1.8 percent, said the UN.
Ban had deplored that the act of besieging areas are "a pervasive tactic of war" in Syria.
At least 228,000 people are besieged by ISIS militants in government-controlled western neighbourhoods of Deir el-Zour city, by 167,500 government forces in eastern Ghouta district in southern Damascus province and Daraya in addition to 26,500 by opposition groups in the pro-government villages of Nubul and Zahra in the countryside of the province of Aleppo.
Ban criticised the "complete and utter absence of protection for civilians" and "total disregard for human life" in Syria clasifying "the largest humanitarian and peace and security crisis facing the world today."
More than 12.2 million people in need remained "extremely challenging" in July according to Ban’s report because of "deliberate obstructions and interference by the parties, including restrictions on movements and burdensome administrative procedures."
According to UN estimates, more than 220,000 people have been killed in Syria since the start of the war which began as an uprising, and later turned into a complex civil war. More than 6.7 million people have fled the country while millions have been displaced internally.