May 30 (Reuters) - Ukrainian drone strikes hit Russia’s oil infrastructure overnight, damaging a tanker and an oil refinery in Taganrog and striking an oil depot in Armavir, Russian regional ‌officials and Ukrainian military said on Saturday.

Add Yahoo as a preferred source to see more of our stories on Google. Ukraine is using new drones to strike Russian rear areas once seen as safe. The attacks are creating new logistics problems far behind the front. Analysts say the campaign is helping ...