N Korea to send troops to fight with Russia

(BBC) -  North Korea has started sending troops to fight with Russia in Ukraine, South Korea's spy agency has said as Seoul warned of a "grave security threat".

The allegation comes a day after Ukrainian President Volodymyr Zelensky said he believed 10,000 North Korean soldiers could join the war, based on intelligence information.

South Korean President Yoon Suk Yeol called for a security meeting on Friday and said the international community must respond with "all available means".

According to the spy agency, 1,500 troops have already arrived in Russia - with anonymous sources telling South Korean media the final figure could be closer to 12,000.

This comes as evidence mounts that North Korea is supplying Russia with ammunition, as recently demonstrated by the recovery of a missile in Ukraine’s Poltava region.

Moscow and Pyongyang have also been deepening their cooperation in recent months. Last week, North Korean leader Kim Jong Un greeted Russian President Vladimir Putin on his birthday, calling him his "closest comrade".

Friday's security meeting was attended by key officials from South Korea's National Security Office, the Ministry of National Defence, and the National Intelligence Service, Yoon's office said.

"[The participants] decided not to ignore the situation and to jointly respond to it with the international community using all available means," it said.

The allegation from the National Intelligence Service comes days after Ukrainian military intelligence sources said that Russia's army is forming a unit of North Koreans.