Original story from Herald Sun 23 July, 2013
Workers at the crippled Fukushima nuclear plant in Japan have reported steam inside a battered reactor building for the second time in less than a week.
The operator said today steam was seen around the fifth floor of the building housing Reactor No 3 shortly after 9am (1000 AEST), Tokyo Electric Power Co (TEPCO) said, adding workers are continuing with the operation to inject cooling water into the reactor and a pool storing nuclear fuel.
TEPCO said monitoring equipment showed no significant changes, including in the levels of toxic substances the broken reactor is releasing.
Steam was spotted in the same area on Thursday last week but had disappeared by the next day, with TEPCO saying it did not know for sure what had caused it.