Tokyo ---- Tokyo Electric Power Co. (TEPCO) today announced that the No. 1 
reactor at the Kashiwazaki-Kariwa nuclear power station (boiling-water 
reactor [BWR], rated output of 1.1 million-kilowatt) automatically shut down 
during its normal rated power operation. "The warning alarm about generator" 
was set off around 3:11am this morning, which triggered the reactor's 
safeguard system to shut off the reactor. TEPCO is now investigating 
the cause of the trouble.

There is no risk of radioactive leakage or other environmental damage due to 
this shutdown.