Russia launched a large-scale attack on Ukraine, targeting the energy grid and leaving over 1 million Ukrainians without electricity. Explosions occurred in multiple cities, and Ukrainian Air Defence intercepted most missiles. President Zelenskyy condemned the use of cluster munitions, while Energy Minister Halushchenko described the attack as a 'massive blow.' Putin claimed the attack was in response to Ukraine's strikes with Western weapons. Local officials reported significant power outages and initiated emergency measures.