Emergency repair crews are working tirelessly to restore power in Ukraine's Kyiv region, after relentless Russian attacks on energy infrastructure left residents exposed during the coldest winter in years. In Boryspil, a town of approximately 60,000 people, workers are dismantling and rebuilding damaged electrical systems in harsh conditions. They labour in -15 degrees Celsius (5 degrees Fahrenheit) temperatures from early morning until midnight, according to Yurii Bryzh, who leads the Boryspil regional department at power company DTEK.