'We will fight imperialism together', North Korea's Kim tells Putin

Russia's president and Kim Jong Un are set to explore a range of "sensitive topics" during talks on Wednesday.

Vladimir Putin met his North Korean counterpart in eastern Russia, according to a video released by the Kremlin on Wednesday.

Accompanied by top military brass and senior government figures, Kim Jong Un implied to the Russian president he supported Moscow's invasion of Ukraine.

"Russia has risen to a sacred fight to protect its sovereignty and security against the hegemonic forces," he told reporters. "North Korea supports all Putin's decisions."

"I'm sure we will remain together in [the] fight against imperialism," Kim said earlier, expressing his gratitude to the Russian leader for the visit.

The two men are due to discuss a range of "sensitive topics", according to Kremlin spokesman Dmitry Peskov.