Ukrainian tank unit crew members walk after emerging from a bunker where they took cover from shelling, amid Russia's invasion of Ukraine, near the bombed-out eastern Ukrainian city of Bakhmut, in the eastern Donetsk region, Ukraine, March 29, 2023. REUTERS/Violeta Santos Moura 

A member of a local emergencies ministry takes part in a rescue and search operation in a multi-storey apartment block damaged in recent shelling in the course of Russia-Ukraine conflict in Donetsk, Russian-controlled Ukraine, March 28, 2023. REUTERS/Alexander Ermochenko 

Members of a local emergencies ministry take part in a rescue and search operation in a multi-storey apartment block damaged in recent shelling in the course of Russia-Ukraine conflict in Donetsk, Russian-controlled Ukraine, March 28, 2023. REUTERS/Alexander Ermochenko 

Members of a local emergencies ministry take part in a rescue and search operation in a multi-storey apartment block damaged in recent shelling in the course of Russia-Ukraine conflict in Donetsk, Russian-controlled Ukraine, March 28, 2023. REUTERS/Alexander Ermochenko 

Anti-aircraft unit serviceman of the 10th Mountain Assault Brigade, call sign "Kamin", 42, emerges from a storage basement carrying a portable anti-aircraft missile system, amid Russia's attack on Ukraine, near Soledar north of Bakhmut, Ukraine March 23, 2023. REUTERS/Violeta Santos Moura 

Anti-aircraft unit serviceman of the 10th Mountain Assault Brigade, call sign "Chub", 34, emerges from a storage basement with a portable anti-aircraft missile system amid Russia's attack on Ukraine, near Soledar north of Bakhmut, Ukraine March 23, 2023. REUTERS/Violeta Santos Moura 

Anti-aircraft unit serviceman of the 10th Mountain Assault Brigade, call sign "Kamin", 42, emerges from a storage basement carrying portable anti-aircraft missile systems, amid Russia's attack on Ukraine, near Soledar north of Bakhmut, Ukraine March 23, 2023. REUTERS/Violeta Santos Moura 

A sapper of the State Emergency Service pulls an anti-tank mine as he inspects an area for mines and unexploded shells, amid Russia's attack on Ukraine, in Kharkiv region, Ukraine March 21, 2023. REUTERS/Viacheslav Ratynskyi 

A sapper of the State Emergency Service carries an anti-tank mine as he inspects an area for mines and unexploded shells, as Russia's attack on Ukraine continues, in Kharkiv region, Ukraine March 21, 2023. REUTERS/Viacheslav Ratynskyi 

A sapper of the State Emergency Service carries an anti-tank mine as he inspects an area for mines and unexploded shells, as Russia's attack on Ukraine continues, in Kharkiv region, Ukraine March 21, 2023. REUTERS/Viacheslav Ratynskyi 

A sapper of the State Emergency Service inspects an area for mines and unexploded shells, as Russia's attack on Ukraine continues, in Kharkiv region, Ukraine March 21, 2023. REUTERS/Viacheslav Ratynskyi 

Sappers of the State Emergency Service inspect an area for mines and unexploded shells, as Russia's attack on Ukraine continues, in Kharkiv region, Ukraine March 21, 2023. REUTERS/Viacheslav Ratynskyi 

Sappers of the State Emergency Service inspect an area for mines and unexploded shells, as Russia's attack on Ukraine continues, in Kharkiv region, Ukraine March 21, 2023. REUTERS/Viacheslav Ratynskyi 

Sappers of the State Emergency Service inspect an area for mines and unexploded shells, as Russia's attack on Ukraine continues, in Kharkiv region, Ukraine March 21, 2023. REUTERS/Viacheslav Ratynskyi 

Sappers of the State Emergency Service inspect an area for mines and unexploded shells, as Russia's attack on Ukraine continues, in Kharkiv region, Ukraine March 21, 2023. REUTERS/Viacheslav Ratynskyi 

A sapper of the State Emergency Service inspects an area for mines and unexploded shells, as Russia's attack on Ukraine continues, in Kharkiv region, Ukraine March 21, 2023. REUTERS/Viacheslav Ratynskyi 

A sapper of the State Emergency Service inspects an area for mines and unexploded shells, as Russia's attack on Ukraine continues, in Kharkiv region, Ukraine March 21, 2023. REUTERS/Viacheslav Ratynskyi 

A sapper of the State Emergency Service inspects an area for mines and unexploded shells, as Russia's attack on Ukraine continues, in Kharkiv region, Ukraine March 21, 2023. REUTERS/Viacheslav Ratynskyi 

A sapper of the State Emergency Service carries an anti-tank mine as he inspects an area for mines and unexploded shells, amid Russia's attack on Ukraine, in Kharkiv region, Ukraine March 21, 2023. REUTERS/Viacheslav Ratynskyi 

A sapper of the State Emergency Service carries an anti-tank mine as he inspects an area for mines and unexploded shells, amid Russia's attack on Ukraine, in Kharkiv region, Ukraine March 21, 2023. REUTERS/Viacheslav Ratynskyi 

Residents queue to fill up bottles with fresh drinking water brought in to a neighbourhood near the frontline after critical civil infrastructure was hit amid Russia's attack on Ukraine, in Chasiv Yar, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

Residents queue to fill up bottles with fresh drinking water brought in to a neighbourhood near the frontline after critical civil infrastructure was hit amid Russia's attack on Ukraine, in Chasiv Yar, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

Residents queue to receive food brought in by Ukraine's State Emergency Service members to a neighbourhood near the frontline amid Russia's attack on Ukraine, in Chasiv Yar, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

Residents queue to receive food and fill up bottles with fresh drinking water brought in to a neighbourhood near the frontline after critical civil infrastructure was hit amid Russia's attack on Ukraine, in Chasiv Yar, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

Vasyl Kurlyshchuk, 74, is helped by Ukrainian State Emergency Services member Artur Spytsyn, 32, to select his personal documents and be evacuate from his home in the frontline village of Kalynivka near Chasiv Yar, amid Russia's invasion of Ukraine, in the eastern Donetsk region, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

A sleeve with military officer documents belonging to Vasyl Kurlyshchuk, 74, is placed on a table as he prepares to be evacuated from his home in the frontline village of Kalynivka near Chasiv Yar, amid Russia's invasion of Ukraine, in the eastern Donetsk region, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

Vasyl Kurlyshchuk, 74, opens a photo album as he packs his belongings and prepares to be evacuated by the Ukrainian State Emergency Services from his home in the frontline village of Kalynivka near Chasiv Yar, amid Russia's invasion of Ukraine, in the eastern Donetsk region, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

Vasyl Kurlyshchuk, 74, puts on his shoes as he prepares to be evacuated by the Ukrainian State Emergency Services from his home in the frontline village of Kalynivka near Chasiv Yar, amid Russia's invasion of Ukraine, in the eastern Donetsk region, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura TPX IMAGES OF THE DAY 

Vasyl Kurlyshchuk, 74, reacts as he leaves his home to be evacuated by Ukrainian State Emergency Services members from the frontline village of Kalynivka near Chasiv Yar, amid Russia's invasion of Ukraine, in the eastern Donetsk region, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

Vasyl Kurlyshchuk, 74, reacts as he is helped by Ukrainian State Emergency Services member Spytsyn Artur, 32, to carry his belongings to be evacuate from his home in the frontline village of Kalynivka near Chasiv Yar, amid Russia's invasion of Ukraine, in the eastern Donetsk region, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

Vasyl Kurlyshchuk, 74, reacts as he is shown his dormitory at a transit centre for internally displaced people, after being evacuated by Ukrainian State Emergency Services members from his home in the frontline village of Kalynivka near Chasiv Yar in the eastern Donetsk region, amid Russia's invasion of Ukraine, in Kostiantynivka, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

A plume of smoke resulting from shelling is seen on the horizon as a vehicle of the Ukrainian State Emergency Services transports an internally displaced person Vasyl Kurlyshchuk, 74, evacuated from his frontline village of Kalynivka, amid Russia's invasion of Ukraine, in the eastern Donetsk region, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

Valerii Zolotov, 74, is carried in a blanket by Ukrainian State Emergency Services members to be evacuated from his home, in the frontline town of Chasiv Yar, amid Russia's attack on Ukraine, in Chasiv Yar, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

Ukrainian State Emergency Service member Artur Spytsyn, 32, carries bags with food supplies to take to the civilian population of the frontline town of Chasiv Yar amid Russia's attack on Ukraine, in Kostiantynivka, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

Sunflowers stand dried on the side road as a plume of smoke resulting from shelling rises above the rooftops of the frontline village of Kalynivka near Chasiv Yar, amid Russia's invasion of Ukraine, in the eastern Donetsk region, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

Valerii Zolotov, 74, reacts after after being evacuated from the frontline town of Chasiv Yar amid Russia's attack on Ukraine, in Kostiantynivka, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

Vasyl Kurlyshchuk, 74, opens a photo album as he packs his belongings to be evacuated by the Ukrainian State Emergency Services from his home in the frontline village of Kalynivka near Chasiv Yar, amid Russia's invasion of Ukraine, in the eastern Donetsk region, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

Valerii Zolotov, 74, is assisted by Ukrainian State Emergency Services member Artur Spytsyn, 32, to leave his home to be evacuated amid Russia's attack on Ukraine from the frontline town of Chasiv Yar, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

Vasyl Kurlyshchuk, 74, reacts as he is shown his dormitory at a transit centre for internally displaced people, after being evacuated by Ukrainian State Emergency Services members from his home in the frontline village of Kalynivka near Chasiv Yar, amid Russia's invasion of Ukraine, in the eastern Donetsk region, in Kostiantynivka, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

Ukrainian State Emergency Service member Artur Spytsyn, 32, carries bottled water to take to the civilian population of the frontline town of Chasiv Yar amid Russia's attack on Ukraine, in Kostiantynivka, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

Ukrainian State Emergency Services members carry Valerii Zolotov, 74, to an evacuation vehicle at a transit centre for internally displaced people after being evacuated, amid Russia's attack on Ukraine, from the frontline town of Chasiv Yar, in Kostiantynivka, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

Vasyl Kurlyshchuk, 74, reacts as he sits inside a truck after leaving his home to be evacuated by Ukrainian State Emergency Services members from the frontline village of Kalynivka near Chasiv Yar, amid Russia's invasion of Ukraine, in the eastern Donetsk region, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

Vasyl Kurlyshchuk, 74, picks clothes to pack as he prepares to be evacuated by the Ukrainian State Emergency Services from his home in the frontline village of Kalynivka near Chasiv Yar, amid Russia's invasion of Ukraine, in the eastern Donetsk region, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

Vasyl Kurlyshchuk, 74, reacts as is told by Ukrainian State Emergency Services member Spytsyn Artur, 32, to carry his belongings to be evacuated from his home, at his request, in the frontline village of Kalynivka near Chasiv Yar, amid Russia's invasion of Ukraine, in the eastern Donetsk region, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

An Ukrainian tank passes by a vehicle of the Ukrainian State Emergency Services transporting internally displaced people Vasyl Kurlyshchuk, 74, and Valerii Zolotov, 74, both evacuated from the frontline area of Chasiv Yar in the eastern Donetsk region, amid Russia's invasion of Ukraine, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

Valerii Zolotov, 74, is carried by Ukrainian State Emergency Services members to be evacuated from his home, in the frontline town of Chasiv Yar, amid Russia's attack on Ukraine, in Chasiv Yar, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

Ukrainian State Emergency Services member Artur Spytsyn, 32, picks up a kitten as he awaits for a person to pack their belongings and be evacuated from the frontline village of Kalynivka near Chasiv Yar, amid Russia's invasion of Ukraine, in the eastern Donetsk region, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

Ukrainian State Emergency Services member Artur Spytsyn, 32, packs the belongings of Vasyl Kurlyshchuk, 74, for the latter to be evacuated from his home in the frontline village of Kalynivka near Chasiv Yar, amid Russia's invasion of Ukraine, in the eastern Donetsk region, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

Ukrainian State Emergency Services member Artur Spytsyn, 32, explains to Valerii Zolotov, 74, that he is there to evacuate him from his home as requested by his family, amid Russia's attack on Ukraine, from the frontline town of Chasiv Yar, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

Vasyl Kurlyshchuk, 74, reacts as he is instructed by Ukrainian State Emergency Services member Spytsyn Artur, 32, to pack his belongings to be evacuated, at his prior request, from his home, in the frontline village of Kalynivka near Chasiv Yar, amid Russia's invasion of Ukraine, in the eastern Donetsk region, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

Valerii Zolotov, 74, is assisted by Ukrainian State Emergency Services member Artur Spytsyn, 32, to leave his home to be evacuated amid Russia's attack on Ukraine from the frontline town of Chasiv Yar, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

Ukrainian State Emergency Services members carry Valerii Zolotov, 74, on a stretcher from an evacuation vehicle into a transit centre for internally displaced persons after being evacuated amid Russia's attack on Ukraine due to bombardment from the frontline town of Chasiv Yar, in Kostiantynivka, Ukraine March 21, 2023. REUTERS/Violeta Santos Moura 

A member of the de-mining department of the Ukrainian Emergency Services surveys an area of farmland and electric power lines for land mines and other unexploded ordnance for electricians to access high voltage towers damaged by Russian strikes in order to repair them, amid Russia's invasion of Ukraine, in Korovii Yar, in the Eastern Donetsk region, Ukraine, March 20, 2023. REUTERS/Violeta Santos Moura 

Members of the de-mining department of the Ukrainian Emergency Services survey an area of farmland and electric power lines for land mines and other unexploded ordnance for electricians to access power towers damaged by Russian strikes in order to repair them, amid Russia's invasion of Ukraine, in Korovii Yar, in the Eastern Donetsk region, Ukraine, March 20, 2023. REUTERS/Violeta Santos Moura 

A member of the de-mining department of the Ukrainian Emergency Services surveys an area of farmland and electric power lines for land mines and other unexploded ordnance for electricians to access power towers damaged by Russian strikes in order to repair them, amid Russia's invasion of Ukraine, in Korovii Yar, in the Eastern Donetsk region, Ukraine, March 20, 2023. REUTERS/Violeta Santos Moura 

A member of the de-mining department of the Ukrainian Emergency Services surveys an area of farmland and electric power lines for land mines and other unexploded ordnance for electricians to access power towers damaged by Russian strikes in order to repair them, amid Russia's invasion of Ukraine, in Korovii Yar, in the Eastern Donetsk region, Ukraine, March 20, 2023. REUTERS/Violeta Santos Moura 

Members of the de-mining department of the Ukrainian Emergency Services survey an area of farmland and electric power lines for land mines and other unexploded ordnance for electricians to access power towers damaged by Russian strikes in order to repair them, amid Russia's invasion of Ukraine, in Korovii Yar, in the Eastern Donetsk region, Ukraine, March 20, 2023. REUTERS/Violeta Santos Moura 

Members of the de-mining department of the Ukrainian Emergency Services survey an area of farmland and electric power lines for land mines and other unexploded ordnance for electricians to access power towers damaged by Russian strikes in order to repair them, amid Russia's invasion of Ukraine, in Korovii Yar, in the Eastern Donetsk region, Ukraine, March 20, 2023. REUTERS/Violeta Santos Moura 

Members of the de-mining department of the Ukrainian Emergency Services survey an area of farmland and electric power lines for land mines and other unexploded ordnance for electricians to access power towers damaged by Russian strikes in order to repair them, amid Russia's invasion of Ukraine, in Korovii Yar, in the Eastern Donetsk region, Ukraine, March 20, 2023. REUTERS/Violeta Santos Moura 

A member of the de-mining department of the Ukrainian Emergency Services prepares to survey an area of farmland and electric power lines for land mines and other unexploded ordnance for electricians to access power towers damaged by Russian strikes in order to repair them, amid Russia's invasion of Ukraine, in Korovii Yar, in the Eastern Donetsk region, Ukraine, March 20, 2023. REUTERS/Violeta Santos Moura