North Korean leader Kim Jong-il began his first trip to Russia since 2002 on Saturday, the Kremlin has said.
Kim is expected to hold talks with Russian President Dmitry Medvedev.
The talks will take place at a military facility in Ulan-Ude, eastern Siberia, on Tuesday, the South Korean Yonhap news agency reported, citing an unnamed source.
Yonhap said earlier the secretive leader’s armored train was spotted in Russia’s border town of Khasan.