Japan may have to dump radioactive Fukushima water into the Pacific Ocean due to the lack of room for storage, Japanese environment minister Yoshiaki Harada has said

More than 1M tonnes of contaminated water is held in almost 1,000 tanks at the Fukushima Daiichi site, but the utility has warned that it will run out of tank space by the summer of 2022.

Environmentalists point out the government is obliged to seek other environmental alternatives.

"The Government must commit to the only environmentally acceptable option for managing this water crisis, which is long-term storage and processing to remove radioactivity, including tritium," says ​​​​​​senior nuclear specialist with Greenpeace Germany Shaun Burnie.