俄罗斯一变电站遭袭，约3000户断电

Group 1 - The core event reported is an attack on a substation in Kursk Oblast, Russia, resulting in power outages for approximately 3,000 households [3][4]. - The attack was attributed to Ukrainian forces, leading to the shutdown of two boiler rooms in the Borovsk district of the city of Rylsk [3]. - As of the report, there have been no casualties reported from the incident [3].