Russian attacks leave Ukrainian cities without power and heat in winter

Russian strikes have destroyed energy facilities in Ukrainian cities including Kharkiv and Kyiv, leaving hundreds of thousands of people without electricity and heat during freezing winter temperatures. The attacks have created a deepening winter crisis as Ukraine braces for further assaults on its energy infrastructure. Meanwhile, Ukrainian forces reported repelling a Russian assault near Kharkiv, killing 70 troops and raising their flag over Kupyansk.