Ukrainian air defenses destroyed three drones, though hits were recorded, he added. At least one electrical substation was hit, announced Ukrenergo, affecting three districts of the city. Hospitals, schools, kindergartens, a high-speed tram line, and trams and trolleybuses have been left without power. Read also: Three injured in Russian overnight drone attack on Kharkiv – video, photos 60,000 subscribers had their power restored at around 7:00 a.m. EET, said Vilkul, adding that power was returned to the city’s hospitals, trolleybuses, and trams. The boiler room at Thermal Power Plant No. 2 wa…