OAK HARBOR, Ohio (AP) — A FirstEnergy Corp. nuclear plant along Lake Erie in Ohio is back in action after shutting down for more than a month for scheduled refueling and maintenance.

The subsidiary of FirstEnergy that runs the Davis-Besse plant in Oak Harbor says the facility began producing electricity this week. The shutdown that started May 6 included a series of safety inspections at the site.

During the previous shutdown last fall, crews had found cracks in the outer concrete wall that's designed to protect the reactor. The company says the latest inspections indicated those cracks have not grown, and no new cracks were found.

Opponents say the cracks are a sign the plant is unsafe.

FirstEnergy says the wall is serving its purpose safely and reliably.

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