The United Nations, which has warned of famine in the Gaza Strip, said on Wednesday the amount of humanitarian aid entering the enclave has dropped by two-thirds since Israel began its military operation in the southern Rafah region this month.

"The amount of food and other aid entering Gaza, already insufficient to meet the soaring needs, has further shrunk since 7 May," the U.N. Office for the Coordination of Humanitarian Affairs (OCHA) said.

A daily average of 58 aid trucks reached Gaza from May 7 to Tuesday, compared with a daily average of 176 aid trucks from April 1 to May 6, OCHA said. This marks a drop of 67%.