TOPSHOT - The jailers control the prisoners walking in the corridor of Lukyanivska prison in Kiev on July 6, 2018. Ukrainian authorities struggle to improve living conditions in numerous jails in the crisis-hit country as the prisoners languish in the Kiev's main detention centre, whose one of the buildings was built as early as in the middle of XIX century and has never seen an overhaul. / AFP PHOTO / Sergei SUPINSKY

A prisoner is pictured in the twenty-person prison cell of Lukyanivska prison in Kiev on July 6, 2018. Ukrainian authorities struggle to improve living conditions in numerous jails in the crisis-hit country as the prisoners languish in the Kiev's main detention centre, whose one of the buildings was built as early as in the middle of XIX century and has never seen an overhaul. / AFP PHOTO / Sergei SUPINSKY

A prisoner gestures in the twenty-person prison cell of Lukyanivska prison in Kiev on July 6, 2018. Ukrainian authorities struggle to improve living conditions in numerous jails in the crisis-hit country as the prisoners languish in the Kiev's main detention centre, whose one of the buildings was built as early as in the middle of XIX century and has never seen an overhaul. / AFP PHOTO / Sergei SUPINSKY

A prisoner eats in the twenty-person prison cell of Lukyanivska prison in Kiev on July 6, 2018. Ukrainian authorities struggle to improve living conditions in numerous jails in the crisis-hit country as the prisoners languish in the Kiev's main detention centre, whose one of the buildings was built as early as in the middle of XIX century and has never seen an overhaul. / AFP PHOTO / Sergei SUPINSKY

A prisoner eats in the twenty-person prison cell of Lukyanivska prison in Kiev on July 6, 2018. Ukrainian authorities struggle to improve living conditions in numerous jails in the crisis-hit country as the prisoners languish in the Kiev's main detention centre, whose one of the buildings was built as early as in the middle of XIX century and has never seen an overhaul. / AFP PHOTO / Sergei SUPINSKY

The jailers control the prisoners walking in the corridor of Lukyanivska prison in Kiev on July 6, 2018. Ukrainian authorities struggle to improve living conditions in numerous jails in the crisis-hit country as the prisoners languish in the Kiev's main detention centre, whose one of the buildings was built as early as in the middle of XIX century and has never seen an overhaul. / AFP PHOTO / Sergei SUPINSKY

The jailers control the prisoners walking in the corridor of Lukyanivska prison in Kiev on July 6, 2018. Ukrainian authorities struggle to improve living conditions in numerous jails in the crisis-hit country as the prisoners languish in the Kiev's main detention centre, whose one of the buildings was built as early as in the middle of XIX century and has never seen an overhaul. / AFP PHOTO / Sergei SUPINSKY

A jailer guards a prisoner who is waitng for his transportation to the court in Lukyanivska prison yard in Kiev on July 6, 2018. Ukrainian authorities struggle to improve living conditions in numerous jails in the crisis-hit country as the prisoners languish in the Kiev's main detention centre, whose one of the buildings was built as early as in the middle of XIX century and has never seen an overhaul. / AFP PHOTO / Sergei SUPINSKY

A jailer guards a prisoner who is waing for his transportation to the court in Lukyanivska prison yard in Kiev on July 6, 2018. Ukrainian authorities struggle to improve living conditions in numerous jails in the crisis-hit country as the prisoners languish in the Kiev's main detention centre, whose one of the buildings was built as early as in the middle of XIX century and has never seen an overhaul. / AFP PHOTO / Sergei SUPINSKY

A dog guards Lukyanivska prison yard in Kiev on July 6, 2018. Ukrainian authorities struggle to improve living conditions in numerous jails in the crisis-hit country as the prisoners languish in the Kiev's main detention centre, whose one of the buildings was built as early as in the middle of XIX century and has never seen an overhaul. / AFP PHOTO / Sergei SUPINSKY

A prisoner makes repairs in one of prison cells of Lukyanivska prison yard in Kiev on July 6, 2018. Ukrainian authorities struggle to improve living conditions in numerous jails in the crisis-hit country as the prisoners languish in the Kiev's main detention centre, whose one of the buildings was built as early as in the middle of XIX century and has never seen an overhaul. / AFP PHOTO / Sergei SUPINSKY

A prisoner makes repairs in one of prison cells of Lukyanivska prison yard in Kiev on July 6, 2018. Ukrainian authorities struggle to improve living conditions in numerous jails in the crisis-hit country as the prisoners languish in the Kiev's main detention centre, whose one of the buildings was built as early as in the middle of XIX century and has never seen an overhaul. / AFP PHOTO / Sergei SUPINSKY

Prisoners make repairs in one of prison cells of Lukyanivska prison yard in Kiev on July 6, 2018. Ukrainian authorities struggle to improve living conditions in numerous jails in the crisis-hit country as the prisoners languish in the Kiev's main detention centre, whose one of the buildings was built as early as in the middle of XIX century and has never seen an overhaul. / AFP PHOTO / Sergei SUPINSKY

A prisoner cleans up the prison cell of Lukyanivska prison yard in Kiev on July 6, 2018. Ukrainian authorities struggle to improve living conditions in numerous jails in the crisis-hit country as the prisoners languish in the Kiev's main detention centre, whose one of the buildings was built as early as in the middle of XIX century and has never seen an overhaul. / AFP PHOTO / Sergei SUPINSKY

Cats walk in Lukyanivska prison yard in Kiev on July 6, 2018. Ukrainian authorities struggle to improve living conditions in numerous jails in the crisis-hit country. Prisoners languish in Kiev's main detention centre, of which one building was built in the mid-19th century and has never seen an overhaul. / AFP PHOTO / Sergei SUPINSKY

A prisoner shows her embroidery as she attends in the prison cell of Lukyanivska prison yard in Kiev on July 6, 2018. Ukrainian authorities struggle to improve living conditions in numerous jails in the crisis-hit country as the prisoners languish in the Kiev's main detention centre, whose one of the buildings was built as early as in the middle of XIX century and has never seen an overhaul. / AFP PHOTO / Sergei SUPINSKY

Prisoners make repairs in one of prison cells of Lukyanivska prison yard in Kiev on July 6, 2018. Ukrainian authorities struggle to improve living conditions in numerous jails in the crisis-hit country as the prisoners languish in the Kiev's main detention centre, whose one of the buildings was built as early as in the middle of XIX century and has never seen an overhaul. / AFP PHOTO / Sergei SUPINSKY

Prisoners are pictured in the prison cell of Lukyanivska prison yard in Kiev on July 6, 2018. Ukrainian authorities struggle to improve living conditions in numerous jails in the crisis-hit country as the prisoners languish in the Kiev's main detention centre, whose one of the buildings was built as early as in the middle of XIX century and has never seen an overhaul. / AFP PHOTO / Sergei SUPINSKY

A cook, prisoner of Lukyanivska prison, cooks in Kiev on July 6, 2018. Ukrainian authorities struggle to improve living conditions in numerous jails in the crisis-hit country as the prisoners languish in the Kiev's main detention centre, whose one of the buildings was built as early as in the middle of XIX century and has never seen an overhaul. / AFP PHOTO / Sergei SUPINSKY

A cook, prisoner of Lukyanivska prison, cooks in Kiev on July 6, 2018. Ukrainian authorities struggle to improve living conditions in numerous jails in the crisis-hit country as the prisoners languish in the Kiev's main detention centre, whose one of the buildings was built as early as in the middle of XIX century and has never seen an overhaul. / AFP PHOTO / Sergei SUPINSKY

Employees of Lukyanivska prison walk in the prison's yard in Kiev on July 6, 2018. Ukrainian authorities struggle to improve living conditions in numerous jails in the crisis-hit country as the prisoners languish in the Kiev's main detention centre, whose one of the buildings was built as early as in the middle of XIX century and has never seen an overhaul. / AFP PHOTO / Sergei SUPINSKY

An employee of Lukyanivska prison walks in the prison's yard in Kiev on July 6, 2018. Ukrainian authorities struggle to improve living conditions in numerous jails in the crisis-hit country as the prisoners languish in the Kiev's main detention centre, whose one of the buildings was built as early as in the middle of XIX century and has never seen an overhaul. / AFP PHOTO / Sergei SUPINSKY

Prisoners rest in the yard of Lukyanivska prison in Kiev on July 6, 2018. Ukrainian authorities struggle to improve living conditions in numerous jails in the crisis-hit country as the prisoners languish in the Kiev's main detention centre, whose one of the buildings was built as early as in the middle of XIX century and has never seen an overhaul. / AFP PHOTO / Sergei SUPINSKY

A prisoner looks out from prisson cell of Lukyanivska prison in Kiev on July 6, 2018. Ukrainian authorities struggle to improve living conditions in numerous jails in the crisis-hit country as the prisoners languish in the Kiev's main detention centre, whose one of the buildings was built as early as in the middle of XIX century and has never seen an overhaul. / AFP PHOTO / Sergei SUPINSKY