Russian Foreign Minister Sergey Lavrov on Wednesday arrived in North Korea for a two-day visit, Russia's Tass news agency said, during which he may meet with leader Kim Jong Un amid deepening military cooperation between Moscow and Pyongyang that has raised international concern.

Lavrov's trip to North Korea follows his stay in Beijing to attend a forum on China's signature Belt and Road infrastructure initiative and accompany Russian President Vladimir Putin there.

The foreign minister is expected to hold talks with his North Korean counterpart Choe Son Hui, according to Russian media reports. He will likely brief the North Korean side about the outcome of just-held summit talks between Putin and his Chinese counterpart Xi Jinping in Beijing.

Agenda items are also expected to include bilateral military and economic cooperation as well as Putin's accepted invitation to visit Pyongyang. Last month, Kim met with the president in Russia's Far East and agreed on Lavrov's visit to North Korea in October.

The United States said last Friday that North Korea has recently delivered more than 1,000 containers of military equipment and munitions to Russia for its war on Ukraine.

White House national security spokesman John Kirby said Washington assesses that Pyongyang is seeking military assistance from Russia in return, including fighter aircraft and surface-to-air missiles.

On Tuesday, Kremlin Spokesman Dmitry Peskov rejected as ungrounded Western allegations that North Korea has been supplying weapons to Russia, saying they are not backed by any evidence, according to Tass news agency.

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