One day after a deadly 'double-tap' strike on a Ukranian shopping centre killed 16, Ukraine has fired back, hitting a Russian oil refinery as Moscow continues to take aim at civilian centres.Moscow’s forces have intensified ballistic missile attacks on Kyiv, exploiting Ukraine’s chronic shortage of US-made Patriot air defence interceptors, the sole weapon in its arsenal able to shoot down the missiles.Ukrainian President Volodymyr Zelenskyy said one person was killed and another wounded in the latest attacks when the missiles hit railway infrastructure in the capital, Kyiv.Russia’s Defence Ministry confirmed its forces had hit a locomotive depot. Russia's Defence Ministry said it downed a total of 457 Ukrainian drones overnight (Reuters: Maxim Shemetov)In a separate attack, local authorities said two people were killed Saturday afternoon local time in a Russian ballistic missile strike on the Kyiv region, which surrounds the capital.Russian drone strikes also killed four people and wounded another 15 in the Zaporizhzhia region, according to local officials. President Zelenskyy said three people were also wounded in an attack on a minibus in the regional capital, also called Zaporizhzhia.The United Nations said last week Kyiv was one of the hardest-hit cities in July, with at least 54 civilians killed and 202 wounded.In the southern Russian region of Krasnodar, Governor Veniamin Kondratyev said that two children had been killed and two adults wounded in a strike on the Sea of Azov port town of Yeysk. He said a fire had broken out at an unnamed facility at the town's port.The governor of Russia's Belgorod region, which borders Ukraine, said two people had been killed and 13 wounded in Ukrainian attacks, with another four wounded in the nearby region of Bryansk.In Luhansk, an eastern Ukrainian province almost all of which is controlled by Russia, Moscow-installed governor Leonid Pasechnik said two civilians, including a 16-year-old boy, had been killed and nine more wounded.Firefighters work at a site of a shopping centre hit by a Russian drones attack, amid Russia's attack on Ukraine. ( State Emergency Service of Ukraine via Reuters)The latest attacks came a day after Russian drones struck a shopping centre in the city of Kryvyi Rih in central Ukraine on Friday.Dnipropetrovsk regional head Oleksandr Hanzha said the death toll had risen to 16 and nine people remain missing after the attack, which wounded another 130.A site of a shopping centre hit by a Russian drones attack. (Telegram: Prosecutor General's Office)Ukrainian strikes reach far behind enemy linesFollowing the latest wave of Ukranian drone attacks, Russian online news outlet Astra reported an oil refinery in the country's Samara region had been set ablaze in a strike.Mr Zelenskyy said Ukrainian forces struck the Novokuibyshevsk oil refinery in Samara, noting its distance some 1,000 kilometres from the front line.Ukraine has also cast a wider campaign against Russia's economic infrastructure, targeting online-retailer Ozon.In a statement on Telegram, Ozon said work at its Samara region logistics centre in the town of Chapayevsk had been halted after a strike, which it said caused injuries.The strike is the first on Ozon, after weeks of drone attacks on its larger rival Wildberries.Russia's Defence Ministry said it downed a total of 457 Ukrainian drones overnight.ABC/WIRES