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

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 600 miles (1,000 kilometers) east of Moscow and is the site of the major, technologically advanced Taneco oil refinery, which Ukraine’s armed forces said they had targeted. Videos circulating on social media, and geolocated by CNN, show a huge blaze raging and plumes of smoke rising from an area just outside the city, close to what appear to be the characteristic towers of an oil refinery. It isn’t clear exactly what was struck in the attack. The strike comes as both Russia and Ukraine intensify their aerial attacks against one another, while the frontlines of the war largely stagnate.