A drone attack on the Ilsky oil refinery in southern Russia, the second in as many days, has caused a fire, TASS news agency reported on Friday, citing emergency services.
Russia's RIA Novosti news agency also reported that there were no casualties following Friday's incident, while the fire had been put out.
It was not immediately clear who was behind the incident. Ukrainian officials do not usually claim responsibility for such attacks inside Russia's territory, although they sometimes celebrate them using euphemistic language.
