North Korean leader Kim Jong Un enters Russia via armored train

Kim Jong Un’s heavily-armored private train has crossed into Russia ahead of an expected and closely-watched summit with Russian President Vladimir Putin, state media reported Tuesday, amid warnings from the United States that the two leaders could strike an arms deal.

The train was traveling north through Primorsky Krai in the Far East region of the country, Russian state news agency RIA reported Tuesday. South Korea’s Defense Ministry said it believed the North Korean leader entered Russia early Tuesday morning local time.

The North Korean leader briefly left his train to meet local officials at the Russian border station of Khasan before resuming his travels, Reuters reported, citing a source with knowledge of the matter.