Russian President Vladimir Putin on Dec. 22 threatened Ukraine with "more destruction" after drones struck several buildings in the Russian city of Kazan the previous day. Drones hit residential buildings in Kazan,

Russian President Vladimir Putin on Sunday vowed to bring more “destruction” to Ukraine in retaliation for a drone attack on the central Russian city of Kazan a day earlier. Russia accused Ukraine of a “massive” drone attack that hit a luxury apartment block in the city, some 1,000 kilometres (620 miles) from the frontier.

Ukraine brought the war into the heart of Russia Saturday morning with drone attacks that local authorities said damaged residential buildings in the city of Kazan in the Tatarstan region