Russia has amassed a large force of tens of thousands — including recently arrived North Korean troops — to carry out an assault on the Ukrainian positions in Russia’s Kursk region expected in the coming days, a US official told CNN on Sunday.

Ukraine's top military commander, Oleksandr Syrskyi, said on Saturday that there were reports North Korean troops were preparing for combat alongside Russian forces. "We have numerous reports of North Korean soldiers preparing to participate in combat operations alongside Russian Forces,

Russia has gathered 50,000 soldiers in the Kursk region, including North Korean troops. They are preparing for offensive actions, reports The New York Times. According to The New York Times, citing US and Ukrainian officials,