The Russian Federal Security Service (FSB) announced on the 13th (local time) that it has arrested a Japanese journalist in the Far Eastern Sakhalin Oblast on suspicion of espionage, according to TASS and Interfax news agencies.

The FSB detained and is currently investigating a journalist affiliated with Japan’s Hokkaido Shimbun who was officially registered as a foreign correspondent with the Russian Ministry of Foreign Affairs and stationed in Yuzhno-Sakhalinsk, the administrative center of Sakhalin. The FSB claimed it verified that the journalist, acting under instructions from Japanese intelligence agencies, collected and stored national defense-related information with the intent of harming Russia's security.

The journalist was arrested just before leaving Yuzhno-Sakhalinsk, transferred to the Russian capital of Moscow, and detained by a court decision. In a follow-up announcement, the FSB alleged that the detained journalist targeted residents of the Kuril Islands to gather data on the number of people mobilized or volunteering for the Russian military's so-called "special military operation"—referring to Russia's war in Ukraine—with the intention of handing the information over to Japanese authorities.

A video released by the FSB shows agents entering the journalist's residence, placing him in handcuffs, and seizing a Japanese passport, a mobile phone, a laptop PC, and documents appearing to be official Russian government papers. Maria Zakharova, Spokesperson for the Russian Ministry of Foreign Affairs, explicitly identified the detained Japanese journalist as Yuki Imai in a separate statement.

"It is regrettable that Japan is attempting to gather information threatening our security by using a Japan correspondent stationed in Russia who holds foreign journalist status," Zakharova criticized, adding, "Today's incident is not a one-off case."

"Considering Japan's attitude—whereby bilateral cooperation has regressed due to the Japanese authorities' anti-Russian stance since the launch of the special military operation, and Japan refuses to listen to Russia's concerns regarding its remilitarization efforts that infringe upon our legitimate security interests in the Far East—this incident will serve as an additional factor further darkening the atmosphere of Russia-Japan relations," she stated.

The Japanese government plans to verify the facts regarding the detention of its citizen and the Russian side's claims before considering demands for his release. A Japanese Foreign Ministry official stated on the 14th that Tokyo has demanded Russia provide information regarding the detention of the Japanese journalist and ensure a fair process for him, emphasizing that the government will "make every effort to protect its nationals."

Hokkaido Shimbun released a statement saying, "We are aware of the situation, but are currently checking the details," and added, "We will respond by prioritizing the safety of our journalist above all else."

According to Yonhap News, the most recent article by a journalist named Yuki Imai (今井裕紀), matching the name mentioned by Zakharova on the Hokkaido Shimbun website, was a report published on the 5th of this month detailing firsthand encounters with North Korean laborers in Yuzhno-Sakhalinsk. Russian independent media outlet Meduza and others reported that Imai is 34 years old, has been visiting Russia since 2014, and studied abroad at Saint Petersburg State University.

Speculation has also emerged connecting the two events, as the news broke shortly after it was learned that Japanese authorities had extradited a 28-year-old Russian national, believed to be a core member of the hacker group "Qilin," from Japan to Germany where he was subsequently arrested.

This incident comes at a time when tensions between Russia and Japan are escalating over the Kuril Islands, which fall under Russia's administrative jurisdiction in Sakhalin Oblast. In August, President Vladimir Putin visited Iturup Island, one of the four Kuril Islands, prompting strong protests from the Japanese government, which claims sovereignty over the islands and refers to them as the "Northern Territories." On the 2nd of this month, Japan decided on new sanctions prohibiting operations, repairs, and the provision of insurance for 35 vessels belonging to the "shadow fleet" used by Russia to bypass sanctions and export crude oil. This marked the first anti-Russia sanctions since the inauguration of Sanae Takaichi's cabinet, and Moscow has warned of retaliation.

The detention of a Japanese journalist by Russian authorities is considered highly unusual. In 2023, Evan Gershkovich, a journalist for the U.S. daily The Wall Street Journal arrested by Russian authorities, was sentenced to 16 years in prison and served time before being released the following year through a large-scale prisoner swap.

Kyodo News criticized that Russian security authorities are intensifying pressure on journalists from "unfriendly" countries such as the U.S., Europe, and Japan that have imposed sanctions over Russia's invasion of Ukraine, noting that the espionage charges raised by Russia against journalists' reporting activities have a unilateral aspect. The news agency pointed out that the Hokkaido Shimbun journalist's routine reporting activities may have been disguised as espionage.

Kyodo also reported that a Russian resident in Khabarovsk who was cooperating with Japanese media coverage was arrested late last year on charges of state treason and remains missing. In 2019, a reporter from the same outlet was detained in Vladivostok, released after five hours, and ordered by Russian authorities to leave the country within 72 hours. Kyodo explained at the time that the reporter was simply carrying out "routine reporting activities."

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