This is a roundup of events from  Russia's war in Ukraine  on Wednesday, October 7. DTEK, Ukraine's biggest electricity operator, said that Russian airstrikes caused severe damage to a thermal power plant in Ukraine's northern Chernihiv region, leaving parts of the area without power. Two employees were injured in the attack, DTEK reported. According to authorities, an attack on a freight train has also caused disruptions to train service around the city of Nizhyn in Chernihiv region. Meanwhile,