Six people working at Fukushima nuclear power plant were splashed with toxic water from a desalination system on Wednesday, TEPCO, the plant’s operator, said.
The workers were doused with radioactive liquid by accident while removing a pipe connected to the system.
“The water did not come into contact with their faces so there is a little possibility that the workers ingested” any of the water, a TEPCO spokeswoman said, adding there were five other workers present at the time.
The pipe was repaired and the leak stopped after an hour from the accident.
Recently, another worker had accidentally switched off power to pumps keeping broken reactors at a steady temperature.
A long series of recent breakdowns have revealed grave vulnerabilities at the Fukushima Daiichi power plant that was hit by a violent earthquake and tsunami in 2011.
TEPCO has since struggled to deal with the huge amounts of toxic water used to cool reactors that went into meltdown after being struck two years ago.
TEPCO was repeatedly blamed by engineers and industrial experts for its negligence in administrating the toxic water leaks and for lacking the basic skills to measure radioactivity.
“As far as TEPCO people on our contaminated water and sea monitoring panels are concerned, they seem to lack even the most basic knowledge about radiation,” said Kayoko Nakamura, a radiologist and commissioner of the Nuclear Regulation Authority.