Keeping a watchful eye on the sky as his team fixes overhead powerlines in Ukraine’s Donetsk region, Vitaliy Asinenko, head of the regional branch of a power company says his team are always on a heightened state of alert in the face of Russian attacks. "We constantly watch - how the aircraft are flying or not flying. We listen to whether drones are buzzing or not. And we listen to how the artillery works, where it falls - we already understand," he says. IMAGES AND SOUNDBITES