Eight people were taken to hospital after a lightning strike in Grafton, Ohio, prompting officials to declare a mass casualty incident. The strike appears to have occurred at or near a prison facility in the area, triggering an emergency response from local authorities.

Details of the exact circumstances, the extent of injuries and the identities of those affected have not been confirmed in the available report. Officials' declaration of a mass casualty incident indicates the scale of the response required, though further updates would be needed to establish the current condition of those hospitalised.