Yechiel Leiter told "Elizabeth Vargas Reports" the U.N. has "blood on its hands" and will not allow aid into Gaza without collaboration with Hamas.

Hunger and disease continue to stalk Palestinians in Gaza, and aid organizations are warning that children are at greatest risk of starvation. A U.N. worker has described people as "walking corpses."

Ten Palestinians died due to famine and malnutrition over the past 24 hours, according to a statement from the Hamas-run Gaza Ministry of Health on Wednesday. More than 70 children have died from malnutrition in Gaza since the beginning of the year, according to the WHO.