U.N.: Israelis Blocking Aid to Camps

Rene Aquarone, spokesman for the U.N. Relief and Works Agency that looks after Palestinian refugee camps, blamed Israeli security measures such as road blocks that restrict access to and limit movement within Palestinian areas.

"This is a crisis on top of an emergency," Aquarone said.

Aquarone said the agency was having to rely on its international staff to drive aid convoys because its Palestinian staff was barred from entering Israel.