Ukraine says it has hit one of Russia’s largest oil refineries in a drone strike

Ukraine claimed Saturday to have struck one of Russia’s largest oil refineries in a drone attack, starting a fire at the facility more than 700 miles into Russian territory.

​ Ukraine claimed Saturday to have struck one of Russia’s largest oil refineries in a drone attack, starting a fire at the facility more than 700 miles into Russian territory. Read More Breaking News, Latest News and Videos | CNN