The operator of the Fukushima nuclear plant has started releasing radioactive wastewater into the sea.
In a live video from a control room at the plant on Thursday, Tokyo Electric Power Company Holdings showed a staff member turn on a seawater pump, marking the beginning of the controversial project that is expected to last for decades.
Fishing groups in Japan have opposed the plan out of worry of damage to the reputation of their seafood. Groups in China and South Korea have also raised concerns.
The release begins more than 12 years after the March 2011 nuclear meltdowns, caused by a massive earthquake and tsunami.