PERRY -- A FirstEnergy spokeswoman confirms to WKYC that is was refrigerant that leaked from an air conditioning unit in the building today.
FirstEnergy says the plant is monitoring the air levels and that the leak has been contained to one room which is now closed off.
Two workers were in the area when it happened, and both were checked out and returned to work.
The room will remain closed until they can deem it safe to return.
FirstEnergy says there was no impact on public health.