At around 4:20 PM on March 23rd, our staff confirmed light black smoke 
belching from the Unit 3 building, and reported the situation to the fire 
station and related local governments at around 4:25 PM.

The parameters of the reactor, the reactor containment vessel of Unit 3, 
and monitored figures around the site's immediate surroundings remained 
stable without significant change. To be safe, workers in the main control 
room of Unit 3 and around Unit 3 evacuated to a safe location.

TEPCO continues to take all measures to restore the safety and security 
of the site and are monitoring the site's immediate surroundings.