The Guardian: Inside the battle for the Azovstal metalworks PHOTO

A Ukrainian soldier uploaded all his photos of Azovstal before he was captured.

Dmytro Kozatsky, Azov Regiment fighter and photographer, documented the siege of the Azovstal metalworks. Before his capture he posted his pictures on social media, asking that they be shared as widely as possible, The Guardian reports.

On May 20, Russia declared victory in its months-long battle to conquer the Ukrainian port city of Mariupol. The last fighters defending the city's Azovstal steel plant have surrendered.

For months the troops had been holed up in the huge complex, preventing Russia from establishing complete control over the city.

This is some of his work showing the realities of life during the battle. The Azov regiment retains some far-right affiliations.

Warning: this gallery contains images some people may find upsetting

A Ukrainian soldier inside the ruined Azovstal metalworks.

Despite his injuries, this fighter remained defiant.

A soldier who lost his left arm in the fighting.

An injured soldier.

A soldier warms himself by a fire.

A Ukrainian soldier injured during fighting. As the siege progressed and supplies dwindled, conditions deteriorated for the wounded.

A Ukrainian soldier inside the besieged Azovstal steel plant stands under a ray of sunlight.