AFP
The uneasy neighbours' most serious spat since 2012 was triggered by new Prime Minister Sanae Takaichi suggesting on November 7 that Tokyo could intervene militarily in any attack on Taiwan.
China, which claims Taiwan as part of its territory, has been furious, summoning Tokyo's ambassador and advising its citizens against travel to Japan.
The release of at least two Japanese movies will also be postponed in China, according to state media.
Reporting the suspension of seafood imports, Japanese media, including public broadcaster NHK, cited unnamed government sources.
China explained the move as necessary to monitor treated wastewater being released from the stricken Fukushima nuclear power plant, NHK said.
China had only recently resumed purchasing some marine products from Japan following an earlier ban imposed after the Fukushima operation began in 2023.
The UN atomic agency said the release of the equivalent of 540 Olympic pools' worth of cooling water collected since a tsunami crippled the facility in 2011 was safe.
But Beijing has accused Japan of treating the Pacific as a "sewer".
Beijing's foreign ministry did not confirm the latest reported suspension when asked on Wednesday.
Ministry spokeswoman Mao Ning told a regular news conference: "Under the current circumstances, even if Japanese seafood were exported to China, there would not be a market."
Japanese government spokesman Minaru Kihara also said there had been "no notifications from the Chinese side on this".
"It is important to follow through on the understanding shared between Japan and China in September last year (about seafood)," Kihara told reporters.
In 2023, seafood shipments to mainland China accounted for 15.6 percent of a total of 390 billion yen ($2.5 billion), down from 22.5 percent in 2022.
Hong Kong accounted for 26.1 percent, and the United States accounted for 15.7 percent in 2023.
China, which claims Taiwan as part of its territory, has been furious, summoning Tokyo's ambassador and advising its citizens against travel to Japan.
The release of at least two Japanese movies will also be postponed in China, according to state media.
Reporting the suspension of seafood imports, Japanese media, including public broadcaster NHK, cited unnamed government sources.
China explained the move as necessary to monitor treated wastewater being released from the stricken Fukushima nuclear power plant, NHK said.
China had only recently resumed purchasing some marine products from Japan following an earlier ban imposed after the Fukushima operation began in 2023.
The UN atomic agency said the release of the equivalent of 540 Olympic pools' worth of cooling water collected since a tsunami crippled the facility in 2011 was safe.
But Beijing has accused Japan of treating the Pacific as a "sewer".
Beijing's foreign ministry did not confirm the latest reported suspension when asked on Wednesday.
Ministry spokeswoman Mao Ning told a regular news conference: "Under the current circumstances, even if Japanese seafood were exported to China, there would not be a market."
Japanese government spokesman Minaru Kihara also said there had been "no notifications from the Chinese side on this".
"It is important to follow through on the understanding shared between Japan and China in September last year (about seafood)," Kihara told reporters.
In 2023, seafood shipments to mainland China accounted for 15.6 percent of a total of 390 billion yen ($2.5 billion), down from 22.5 percent in 2022.
Hong Kong accounted for 26.1 percent, and the United States accounted for 15.7 percent in 2023.