South Korea’s main opposition leader has begun a hunger strike to protest government policies, including the passive stance taken over Japan releasing treated radioactive water from the Fukushima nuclear plant into the Pacific Ocean.

Lee Jae-myung, leader of the Democratic Party of Korea, listed an assortment of reasons for his protest at a news conference on Thursday, without saying how long his hunger strike would last.

They ranged from the government’s economic mismanagement to its divisive politics and threats to press freedom, a lack of accountability for last October’s Itaewon crowd crush disaster, and the failure to oppose the Fukushima water release.

It is not uncommon for South Korean politicians to resort to hunger strikes to bring attention to their stand but it is rare for the leader of a major party to make such a strong gesture.

Turning to the Fukushima issue, Mr Lee accused the government of being an ” accomplice by backing up” Japan instead of opposing it.

South Korea has said it neither supports nor agrees with Japan’s action, unlike China, which opposed the plan.

President Yoon Suk Yeol has called critics of the release of the treated radioactive water “people who claim that one plus one equals 100”.

Mr Yoon’s approval ratings slipped slightly to 34 per cent according to a Gallup poll released on Friday, with foreign policy and the Fukushima water issue cited as factors behind his high disapproval ratings.

Opposition Leader Lee has had his own problems since becoming the head of his party a year ago, just months after he lost the presidential election.

Having already been indicted for graft earlier this year, Lee was recently charged over allegations of third-party bribery in connection with a company accused of illegal money transfers to North Korea.

Mr Lee has denied the allegations as “fiction”.

-Reuters