In brief
The company said security conditions prevented an assessment of the strike's consequences when it reported the attack.
A Russian drone hit an installation at a Naftogaz Group gas production site in Ukraine's Kharkiv region on the morning of October 21, RBC-Ukraine reported, citing the company's press service.
Naftogaz said security conditions prevented it from assessing the consequences at the time of its statement. RBC-Ukraine's report did not specify casualties or the extent of damage.
Acting Naftogaz board chairman Serhii Fedorenko said Russian forces had struck the group's facilities more than 400 times since the start of the year. That figure covered the group as a whole, rather than this site alone.