TOKYO - Japan is considering taking some measure against Russia, following President Vladimir Putin's visit to Etorofu Island, a senior Foreign Ministry official said Friday.
Putin made his first trip to the Russian-controlled, Japanese-claimed island chain off Hokkaido as president or prime minister Thursday, drawing a backlash from Tokyo, which called it "totally unacceptable."
"We are considering what step to take going forward," the official told reporters. An additional sanction is believed to be under consideration.
The islands, known in Japan as the Northern Territories and by Russia as the Southern Kurils, have long been at the center of a territorial row between the countries. The visit came as ties between Japan and Russia remain strained amid Moscow's ongoing invasion of Ukraine.
Japan maintains that the island chain, consisting of Etorofu, Kunashiri, Shikotan and the Habomai islet group, was illegally seized by the Soviet Union soon after Japan's surrender in World War II. Russia argues the seizure was legitimate.
On Thursday, the Japanese government summoned Nikolay Nozdrev, Russia's ambassador in Tokyo, and lodged a strong protest over Putin's visit, while Prime Minister Sanae Takaichi said the Northern Territories are an inherent part of Japanese territory "both historically and under international law."
