US Warns North Korea Against Selling Weapons as Kim Jong Un Visits Russia

North Korean leader Kim Jong Un is believed to have crossed in Russia on his armored private train, South Korea's defense ministry said on Tuesday, amid warnings from Washington against North Korea engaging in an arms deal with Russia.

The Kremlin said on Monday that Mr. Kim was visiting Russia "at the invitation of President of the Russian Federation Vladimir Putin," without specifying the timing and exact purpose of his visit.
According to North Korean state media, the North Korean leader headed to Russia along with leading officials of the ruling Workers' Party of Korea, government, and armed forces.
Kremlin spokesman Dmitry Peskov said there would be negotiations involving two delegations, and if needed, the leaders would engage in a "one-on-one format."

On Monday, Mr. Putin arrived in Russia's far eastern city of Vladivostok to attend the 2023 Eastern Economic Forum, which is slated to wrap up on Sept. 13.

Neither nation has disclosed information about the purpose of their meeting. U.S. officials believe discussions about a potential arms deal will likely occur during Mr. Kim's visit.