Russia on Saturday vowed to retaliate after it accused Ukraine of firing U.S.-supplied ATACMS missiles at the border region of Belgorod the previous day. Outgoing U.S. President Joe Biden authorized Kyiv to use the long-range weapons against Russia last year,

Russian forces continue to make costly but consistent gains in the Donetsk region in eastern Ukraine. They are steadily grinding down a pocket of resistance around the town of Kurakhove and are also fighting to envelop the larger nearby city of Pokrovsk, Ukrainian soldiers and officials said.