A Russian drone attack on Ukraine’s southern port city of Odesa killed two women and a toddler, authorities said Monday, while Ukrainian long-range drones targeted Russia’s key Black Sea port for oil exports.

The nighttime attack on Odesa heavily damaged an apartment block, killing the women and a 2-year-old child, officials said. Rescuers working under floodlights pulled four people from the rubble.

Eleven people were hospitalized, including a pregnant woman and two children — the youngest less than a year old, Ukrainian President Volodymyr Zelenskyy said in a post on X.

Russia has pounded civilian areas of Ukraine since it invaded its neighbor just over four years ago, killing more than 15,000 people, according to the United Nations.

Over the past week, Russia has launched at Ukraine more than 2,800 attack drones, nearly 1,350 powerful glide bombs and more than 40 missiles of various types, according to Zelenskyy.

In the southern city of Kherson, Russian shelling killed an elderly woman, and three other women were hospitalized, according to Oleksandr Prokudin, head of the regional military administration. The injured women sustained shrapnel wounds, concussion, blast injuries and head trauma, he said.

Seven people were injured by Russian drones and shelling in the southern city of Nikopol, leaving a 62-year-old in critical condition as the strikes damaged a multistory building and a pharmacy.

Drones also hit Kharkiv, Ukraine’s second-largest city, injuring three people, according to regional military administration head Oleh Sinehubov.

Russia has taken aim at Ukraine’s power grid, and overnight barrages hit energy infrastructure in Chernihiv, Sumy, Kharkiv and Dnipro regions, Zelenskyy said.