More than two dozen trucks containing food and other goods intended for people in Gaza were stranded at the Egyptian border yesterday, reports the Associated Press. The U.N. Relief and Works Agency said aid shipments are hitting bottlenecks on Gaza’s borders with both Israel and Egypt, but Egyptian officials will not explain why trucks have had trouble entering Gaza through the country’s Rafah border crossing.

Egypt and Israel effectively sealed their borders with Gaza in 2007 after the militant Palestinian group Hamas seized control of the area.

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