Ukraine strikes city in Russia's Tatarstan, officials cancel public events

Ukrainian drone strikes on a city in Russia's Tatarstan region, more than 1,000 miles (1,600 kilometres) from Ukraine, hit a residential building on June 12, Russian officials said, forcing cancellations of state holiday celebrations.

Kiev's army said it struck the major TANECO oil refinery in Tatarstan, as well as a factory producing synthetic rubber for use in ballistic missile production in Togliatti, on the Volga river in the Samara region.

Ukraine has upped its strikes on Russia, which it says is fair retaliation for more than four years of Moscow's full-scale offensive, sending drones into Russia as far as the Urals.

The mayor of Nizhnekamsk — an industrial city of some 240,000 people by the Kama river in the east of the republic of Tatarstan — said the city had been attacked.