A Russian ballistic missile strike on the northeastern Ukrainian city of Sumy killed at least 20 people on Sunday morning, the city's acting mayor said.

Ukrainian President Volodymyr Zelensky has condemned a "horrific" Russian ballistic missile attack on the northeastern Ukrainian city of Sumy on Sunday, after repeated warnings from Ukrainian officials that a fresh offensive on the area could be imminent.

Russia has debunked claims by Ukraine that Moscow enlisted an unconfirmed number of Chinese nationals to fight alongside its soldiers on the battlefield. Russian Deputy Foreign Minister Andrey Rudenko,

According to U.S. officials, the Chinese fighters appear to have undergone minimal training and haven’t had a meaningful impact on Russian military operations. Still, Chinese military officers — with Beijing’s blessing — have been observed in Russian rear areas,