Emergencies personnel work at the crash site of a Ukrainian military plane south of Kyiv on February 24, 2022. (Photo: Xinhua)

President Volodymyr Zelensky said 137 Ukrainians died Thursday after his country came under a large-scale attack from Russian forces.

"Today we have lost 137 of our heroes, our citizens. Military and civilian," Zelensky said in a video address, adding that another 316 people had been injured.