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.