Ukrainian drone strikes on southern Russia have killed a 9-year-old boy and set fire to a major oil terminal, officials said Saturday.

Russia launched a large-scale missile attack on Ukrainian energy facilities during the morning rush hour on Friday, Kyiv said, while explosions were heard in the Black Sea port of Odesa and other cities in western Ukraine.

Russia launched a new widespread attack on Ukraine’s energy infrastructure overnight, forcing the country to implement emergency power outages, Ukrainian authorities said on Friday.