Ukrainian drone strike kills 13 inside Russia, authorities say, in deadliest attack in two years

By Issy Ronald and Svitlana Vlasova, CNN (CNN) — A Ukrainian drone strike has killed at least 13 people and injured 75 others in Nizhnekamsk, a city in the Tatarstan region deep inside Russia, local authorities said Monday, marking the deadliest attack to hit the country in more than two years. Nizhnekamsk lies more than