Ukraine war: Operating on a baby in the dark after missiles hit Kyiv
On 23 November, when Russian missiles hit the Ukrainian capital, Kyiv Heart Institute was left without most of its power.
A team of doctors continued to work despite the outage; performing heart surgery on a baby under the dim light of handheld LED torches and some support from electrical generators.
During the day of the attack, the hospital successfully completed 10 open-heart surgeries.
The BBC spoke to Professor Borys Todurov, who lead the teams as they operated in near-darkness.
Video by Gem O'Reilly