Air defenses downed 52 of 58 drones launched by Russia overnight. UPDATE 0630 GMT:Four days after the incursion by 21 Russian drones into Polish airspace, another UAV has overflown Romania near the the Ukrainian-Polish border. Following Donald Trump’s statement that the Russian drone incursion into Poland might have been a “mistake”, US Secretary of State Marco Rubio took a cautious line on Saturday. Rubio on the Russian drone strike against Poland: “The drones were intentionally launched. Ukrainian attacks cut Russia’s oil output by 17% in August.