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. July was the deadliest month for Ukrainian civilians since April 2022. Smoke rises from an oil refinery following a Ukrainian drone attack in Moscow, Russia, on June 18. ReutersAttacks on Wildberries’ warehouses last month killed at least eight people in a single day which, up until Monday’s strike on Nizhnekamsk, was the deadliest Ukrainian attack inside Russia. In just one night earlier this month, Russian missiles killed at least 17 people and injured dozens of others in the Kyiv region.