The United States warned on Wednesday that North Korea is benefiting from its troops fighting alongside Russia against Ukraine, gaining experience that makes Pyongyang "more capable of waging war against its neighbors.

North Korean Koksan howitzers spotted in Russia signal increased military aid in Ukraine conflict, escalating tensions and casualties.

A recording has surfaced on social media showing North Korean M1989 Koksan self-propelled howitzers on the front line in Ukraine. According to some experts, these images are a clear signal to the world and evidence of the deteriorating state of Russian artillery,

The launch event came as U.S. Secretary of State Antony Blinken was visiting Seoul for talks with South Korean allies over the North Korean nuclear threat and other issues.

North Korean leader Kim Jong Un oversaw a successful test of a new intermediate-range hypersonic ballistic missile (IRBM) on Monday, state media KCNA said on Tuesday, pledging to accelerate the country's nuclear and missile capabilities.