The Russian-controlled Crimean Peninsula in Ukraine was attacked by drones, while Russian forces were on high alert, according to authorities appointed by Moscow. The Ukrainian government urged its citizens to conserve energy amid relentless Russian strikes that have halved the country's electricity network capacity. The World Health Organization, a UN agency, warned of a humanitarian disaster in Ukraine this winter. Authorities stated that millions of Ukrainians, including residents of the capital Kyiv, may face electricity outages until at least the end of March due to missile attacks that have caused "enormous" damage, according to Ukraine's national energy company. Ukraine has experienced unusually mild temperatures this fall, but the temperature has begun to drop below zero and is expected to reach minus 20 degrees Celsius or even lower in some areas during the winter months.