Egyptian authorities, fearful that an Israeli military push further into southern Gaza will set off a flood of refugees, are building an 8-square-mile walled enclosure in the Sinai Desert near the border, according to Egyptian officials and security analysts. For weeks, Egypt has sought to bolster security along the frontier to keep Palestinians out, deploying soldiers and armored vehicles and reinforcing fences. The massive new compound is part of contingency plans if large numbers of Gazans do manage to get in. More than 100,000 people could be accommodated in the camp, Egyptian officials said. It is surrounded by concrete walls and far from any Egyptian settlements. Large numbers of tents, as yet unassembled, have been delivered to the site, these people said. With Israeli Prime Minister Benjamin Netanyahu saying his army will need to fight Hamas in Rafah, a Palestinian city on the Egyptian border, Egyptian officials think a broad Israeli offensive could happen within weeks.

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