India, Aug. 10 -- A Ukrainian drone attacked the Russian city of Nizhnekamsk on Monday August 10, killed 12 people and wounded 39 others, authorities in the Tatarstan region said. Ukrainian officials had no comment and no other details of the attack were available.

Ukraine has targeted Russian oil facilities with long-range drones almost daily in recent months. The barrage has caused fuel shortages in Russia, eaten into Russian refining capacity, and unsettled the Russian public.

Ukrainian President Volodymyr Zelenskyy says it is a campaign to force Russian President Vladimir Putin to the negotiating table and stop his more than 4-year-old invasion.

Nizhnekamsk came under a "massive" drone attack targeting industrial and civilian facil...