Olha Holubchenko is the chief doctor of the Regional Intensive Care Hospital in Mariupol.

"From February 24 to March 26, I actually lived in the hospital. Everyone knew what to do. We checked the stock of medicines. No one believed that there would be such a war.

The windows on the ground floor were smashed. The shelling was endless. No windows, no light, no water, no communication. I kept a diary, but did not take it out. We believed to the last that no one would come in.

The first wounded soldier with multiple injuries. There was no time to be confused, emotions and fears came later.

There was constant shelling. The first dozens of civilians. We had no connection with anyone. We could not leave, there was no time. Civilians brought bandages, systems, solutions, syringes," said Olha Holubchenko.