This image from a video posted on X by the Centre for Strategic Communication and Information Security of Ukraine shows what appears to be North Korean soldiers receiving apparent Russian gear, Oct. 18. Yonhap

A Ukrainian media outlet has reported that about 500 North Korean soldiers were killed in a missile strike by Kyiv in Russia's western Kursk region.

Citing Global Defense Corp., a defense news publisher, RBC Ukraine said the North Korean soldiers were killed "as a result of the Storm Shadow missile strike on the Kursk region."

South Korean and U.S. officials said North Korea sent more than 10,000 troops to Russia in support of its invasion against Ukraine. (Yonhap)