A ceiling crane in the building housing the No. 6 reactor at the Kashiwazaki-Kariwa nuclear plant in Niigata Prefecture has been found to be damaged, likely by last week's earthquake, Tokyo Electric Power Co. said Tuesday.
The damage does not pose a health threat, Tepco officials said.
The crane is used to lift the lid of the pressure container — the main body of the reactor — when confirming the strength of the reactor core.