Ukrainian Deputy Prime Minister Iryna Vereshchuk said on Tuesday that 52 seriously wounded soldiers have been evacuated from the Azovstal steel plant.

"Fifty-two seriously wounded soldiers were evacuated yesterday. After stabilizing their status, we will exchange them for Russian prisoners. We are working on further stages of the humanitarian operation," Vereshchuk said in a Facebook post. 

The Russian Defense Ministry on the same day said in a briefing that 265 Ukrainian soldiers, including 51 seriously wounded, surrendered at the plant over the past 24 hours, and all those in need of medical care were sent to a hospital in the town of Novoazovsk.