Palisades Nuclear Power Plant

Plant officials say the outage will be "brief" but haven't said when it will return to service.

About 70 gallons of oil was released, officials say there is no path for water to get to Lake Michigan

NRC says plant will be able to operate safely with metal lodged in reactor

Broken piece of metal was found insides the plant's reactor during inspection

Spokeswoman for plant's owner says metal is physically separated from fuel