"North Korea, which needs money, is actively selling new weapons that Russia wants," Defense Minister Shin Won-sik told Yonhap on Wednesday.

Shin cited North Korean leader Kim Jong Un's visit this week to munitions factories, where he inspected what may be recently developed close-range ballistic missiles capable of carrying tactical nuclear weapons.

North Korea, which had previously said it will deploy these missiles to front-line troops, may sell at least some of them to Russia given its suspected sales of short-range ballistic missiles recently, Shin said.

Kim's visit to arms factories came as nearly 50 countries condemned Russia's procurement and use of North Korean ballistic missiles against Ukraine.

North Korea could also test solid-fuel intermediate-range ballistic missiles as early as this month and launch a long-range missile to further escalate tensions before key elections in South Korea and the U.S., Shin added.

South Korea's general election is in April, while the U.S. holds presidential elections in November.

(Reporting by Joyce Lee; Editing by Marguerita Choy)