Choe met with Russia's top envoy to Pyongyang Alexander Matsegora last week to discuss situations on the Korean Peninsula, Moscow's embassy in the North said.
The ministry's Mikhail Ulyanov said the country was working "behind the scenes" to find a political solution, but admitted the use of sanctions against North Korea is nearly exhausted.
Choi may have been in Vladivostok earlier this week.
The most likely trajectory of a North Korean ICBM fired at the USA would mean interception would happen over Russian airspace, US officials have conceded in a new article published by DefenseOne.
Choe also met with Russian vice foreign minister Igor Morgulov, the foreign ministry said.
Burmistrov has been quietly building stronger bilateral ties with Pyongyang.
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The U.S. said it welcomed Moscow's efforts, even though the Russian-Chinese roadmap proposes an end to the U.S joint military exercises with South Korea in exchange for Pyongyang giving up on the nuclear development programme-a proposal the U.S. has already rejected.
Trump warned in his inaugural address to the U.N. General Assembly that he will "totally destroy" the North if necessary.
"Political leaders in the South should ask the US with one voice that military options should never be considered", he said. Most analysts describe how China has a deep relationship and can wield influence on the North; however, Russian Federation birthed North Korea under Stalin and still maintains strong economic and cultural ties. "It argues that crippling North Korea's economy is undesirable since it will lead to potential political instability and Russia's worst fear-regime change", she added.
But in the Korean Peninsula, Russia's increasing involvement is welcomed by one of the US key ally in the region, too.
The Kremlin called the flights "highly undesirable" on Tuesday, after the United States deployed B-1B Lancers near North Korea's eastern coast on Saturday, local time.