Japanese Prime Minister Fumio Kishida expressed concern on Monday about incidents of harassment involving stones being thrown at diplomatic missions and schools in China. This followed Japan's decision to release wastewater from the Fukushima nuclear plant. China recently banned seafood imports from Japan due to the wastewater release, despite Tokyo and the UN's assurance of safety.

Kishida addressed the matter, saying, "There have been numerous harassment calls believed to originate from China and instances of stones being thrown into the Japanese embassy and Japanese schools. It must be said these are regrettable." He revealed that the Chinese ambassador was summoned and urged to promote calm and responsible behavior among the Chinese population.

As a response to the situation, Japan heightened security at its diplomatic missions and schools in China. Japanese nationals were also advised to keep a low profile and avoid speaking Japanese loudly in public.

Deputy Foreign Minister Masataka Okano emphasized the need for accurate information, stating that China should avoid raising concerns without scientific evidence. Social media in China has been filled with recordings of nuisance calls and videos related to the issue.

Meanwhile, Japan has been releasing Fukushima's wastewater into the Pacific, filtering out all radioactive elements except tritium, which remains within safe levels. Test results have validated the safety of the discharge, according to Japanese authorities.