Workers at a DTEK thermal power plant say the facility is facing its worst level of destruction since the start of Russia’s full-scale invasion, following one of the latest strikes targeting Ukraine’s energy infrastructure.

The attack’s timing, the plant’s location and the employees’ full names cannot be disclosed under DTEK security rules.

Reporters were allowed to speak with staff members at the site, where twisted metal, shattered equipment and mangled transmission lines showed the impact of repeated strikes.

“We were warned that this might happen. We get such warnings every other night. But this time it happened. Some say we are ready – but no one can ever be ready for this," Volodymyr, 53, shift supervisor said.

Despite the destruction, employees continue working around the clock to try and restore at least part of the plant before winter temperatures drop further.

For now, the priority is to stabilize the surviving equipment and keep electricity flowing to surrounding regions, even as new attacks remain a nightly threat.

Russia’s barrage of missiles and drones continued early Friday, killing six people in Kyiv, starting fires and scattering debris as the sound of explosions boomed across the city, Ukrainian authorities said.

A pregnant woman was among at least 35 people injured.

AP video by Oleksii Yeroshenko