Atlantic City's casinos have power, but they won't be opening up again until a few other hurdles are cleared.

Mark Wilson, Getty Images

Gov. Chris Christie said Thursday that he's concerned about telling the casinos to open up when the rest of Atlantic City is without power.

The governor says he's been assured that power would be restored to mainland areas of Atlantic County by Friday. Barrier island areas, including Atlantic City, should have power back by Saturday night.

The casinos have been closed since before the storm hit New Jersey on Monday.

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