State Emergency Service of Ukraine/BBC
Ukraine's President Zelensky says the country's military has hit two Russian oil refineries in "long-range" attacks.
Zelensky says refineries in Bashkortostan and Yaroslavl were hit - in Yaroslavl, huge clouds of black smoke were seen over the city.
Russia's regional governor in Yaroslavl calls it the "largest ever attack by enemy drones", saying 92 drones have been destroyed, with three homes catching fire.
Across Russia, the military says it has intercepted and destroyed 605 Ukrainian drones in multiple regions, including Yaroslavl.
Ukraine has launched a series of strikes on Russian infrastructure in recent weeks, including refineries and warehouses.
In Ukraine, officials say three people have been killed in a Russian drone attack on a residential area.
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It started when Russia launched its full-scale invasion of its neighbour on 24 February 2022.
Russian President Vladimir Putin said his goal was to "demilitarise and denazify" Ukraine - he has repeatedly painted the country as a Nazi state. Our explainer looks at the distortions and untruths that Russia has previously spread about Nazis in Ukraine.
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Russian strike on Kharkiv train station kills two, governor says
A Russian strike on a train station in Ukraine's Kharkiv region has killed two people and injured eight, the regional governor has said.
Oleh Syniehubov says in a post on Telegram that some of the injured are in serious condition.
Numerous schools, government offices and homes in Ukraine have been hit by Russia in recent weeks.
Ukraine has also increased its attacks on Russian civilian infrastructure, including power facilities.
Both sides have denied deliberately targeting civilians.
Yaroslavl region targeted multiple times in recent months
This is not the first time energy infrastructure in Yaroslavl has been targeted by Ukrainian strikes.
"Deep strikes" were carried out on oil facilities in the region last month, according to Ukrainian President Volodymyr Zelensky in a Telegram post on 27 July.
He described the attack as part of an effort to "reduce Russia's ability to finance the war". He also describes having struck an oil facility in the region in a Telegram post on 14 June.
Meanwhile, Russia's Mikhail Evraev - governor of Yaroslavl - has described drone attacks on the region on multiple occasions in recent months, including on 6 July, 10 July, 16 July and 23 July, although his posts do not reference the refinery directly.
