Russia's Defense Ministry, meanwhile, said its forces downed at least 70 Ukrainian drones overnight into Tuesday morning. Among the areas targeted was the southwestern Voronezh region, which borders northeastern Ukraine. At least 24 people were injured there, Gov. Aleksandr Gusev said on Telegram.

The bombardment came two days after US President Trump threatened to impose severe sanctions against the country unless it reached a peace settlement within 50 days to end its three-year war on Ukrain