[There is no update from the release issued at 7:00pm.]

Unit 1 (shut down at 2:48pm on March 11th)
- Reactor is shut down and reactor water level is stable.
- Offsite power is available.
- At 8:19am, there was an alarm indicating that one of the control rods 
was not properly inserted, however, at 10:43am the alarm was 
spontaneously called off. Other control rods has been confirmed that they
are fully inserted (reactor is in subcritical status)
- Status of main steam isolation valve: closed
- Injection of water into the reactor is done by Make-up Water Condensate
System.
- At 6:08pm, we announced the increase in reactor containment vessel
pressure, assumed to be due to leakage of reactor coolant. However, we 
do not believe there is leakage of reactor coolant in the containment
vessel at this moment.
- At 5:22am, the temperature of the suppression chamber exceeded
100 degrees. As the reactor pressure suppression function was lost,
at 5:22am, it was determined that a specific incident stipulated in
article 15, clause 1 has occurred.
- We decided to prepare implementing measures to reduce the pressure of 
the reactor containment vessel (partial discharge of air containing
radioactive materials) in order to fully secure safety. This preparation 
work started at around 9:43am and finished at 6:00pm.

Unit 2 (shut down at 2:48pm on March 11th)
- Reactor is shut down and reactor water level is stable.
- Offsite power is available.
- Control rods are fully inserted (reactor is in subcritical status)
- Status of main steam isolation valve: closed
- Injection of water into the reactor is done by Make-up Water Condensate
System.
- We do not believe there is leakage of reactor coolant in 
the containment vessel.
- At 5:32am, the temperature of the suppression chamber exceeded 
100 degrees. As the reactor pressure suppression function was lost,
at 5:32am, it was determined that a specific incident stipulated in
article 15, clause 1 has occurred.
- We decided to prepare implementing measures to reduce the pressure of
the reactor containment vessel (partial discharge of air containing
radioactive materials) in order to fully secure safety. This preparation
work started at around 10:33am and finished at 10:58pm.


Unit 3 (shut down at 2:48pm on March 11th)
- Reactor is shut down and reactor water level is stable.
- Offsite power is available.
- Control rods are fully inserted (reactor is in subcritical status)
- Status of main steam isolation valve: closed
- We do not believe there is leakage of reactor coolant in 
the containment vessel.
- We decided to prepare implementing measures to reduce the pressure of 
the reactor containment vessel (partial discharge of air containing 
radioactive materials) in order to fully secure safety. The preparation 
woke started at around 12:08pm and finished at 12:13pm.

Unit 4 (shut down at 2:48pm on March 11th)
- Reactor is shut down and reactor water level is stable.
- Offsite power is available.
- Control rods are fully inserted (reactor is in subcritical status)
- Status of main steam isolation valve: closed
- Injection of water into the reactor is done by Make-up Water Condensate
System.
- We do not believe there is leakage of reactor coolant in 
the containment vessel.
- In order to cool down the reactor, injection of water into the reactor 
had been done by the Reactor Core Isolation Cooling System, however,
At 6:07am, the temperature of the suppression chamber exceeded 
100 degrees. As the reactor pressure suppression function was lost,
at 6:07am, it was determined that a specific incident stipulated in
article 15, clause 1 has occurred.
- We decided to prepare implementing measures to reduce the pressure of
the reactor containment vessel (partial discharge of air containing
radioactive materials) in order to fully secure safety. The preparation
woke started at around 11:44am and finished at around 11:52am.


Indication from monitoring posts installed at the site boundary did not
show any difference from ordinary level.
No radiation impact to the external environment has been confirmed. We 
will continue to monitor in detail the possibility of radioactive material
being discharged from exhaust stack or discharge canal.
There is no missing person within the power station.
We are presently checking on the site situation of each plant while 
keeping the situation of aftershock and Tsunami in mind.
A seriously injured worker who had been trapped in the crane operating
console of the exhaust stack was transported to the ground at 5:13pm and
confirmed dead at 5:17pm. We sincerely pray for the repose of his soul.
A worker was lightly injured spraining his left ankle and cutting both 
knees when he fell while walking at the site. The worker has returned 
to work after medical treatment and rest.