FSB security agency said reporter was arrested on island of Sakhalin, alleging he was collecting information about Russia’s defences

Russia has arrested a Japanese journalist on the far east island of Sakhalin and accused him of spying, in the latest sign of rising tensions between Moscow and Tokyo.

Russian foreign ministry spokesperson Maria Zakharova identified the reporter as Yuki Imai, from the Hokkaido Shimbun newspaper, adding that he had been accused of “conducting espionage activities on Russian territory”.