A Ukrainian service member sits in a trench at a position on the front line, amid Russia's attack on Ukraine, near the town of New York, Donetsk region, Ukraine June 9, 2022. REUTERS/Gleb Garanich 

Ukrainian service members are seen at a position on the front line, amid Russia's attack on Ukraine, near the town of New York, Donetsk region, Ukraine June 9, 2022. REUTERS/Gleb Garanich 

Parts of a rocket are pictured outside a destroyed city administration building in Bashtanka, Mykolaiv region, as Russia's attack on Ukraine continues, Ukraine June 9, 2022. REUTERS/Edgar Su 

Press officer Olexii Mischenko shows a destroyed city administration building in Bashtanka, Mykolaiv region, as Russia's attack on Ukraine continues, Ukraine June 9, 2022. REUTERS/Edgar Su TPX IMAGES OF THE DAY 

Ukrainian service members are seen at a position on the front line, amid Russia's attack on Ukraine, near the town of New York, Donetsk region, Ukraine June 9, 2022. REUTERS/Gleb Garanich 

A Ukrainian service member shoots from a machine gun at a position on the front line, amid Russia's attack on Ukraine, near the town of New York, Donetsk region, Ukraine June 9, 2022. REUTERS/Gleb Garanich 

A Ukrainian service member walks at a position on the front line, amid Russia's attack on Ukraine, near the town of New York, Donetsk region, Ukraine June 9, 2022. REUTERS/Gleb Garanich 

A Ukrainian service member shoots from a machine gun at a position on the front line, amid Russia's attack on Ukraine, near the town of New York, Donetsk region, Ukraine June 9, 2022. REUTERS/Gleb Garanich TPX IMAGES OF THE DAY 

A Ukrainian service member seats in a trench at a position on the front line, amid Russia's attack on Ukraine, near the town of New York, Donetsk region, Ukraine June 9, 2022. REUTERS/Gleb Garanich 

A local resident smokes a cigarette as a house is set on fire following a military strike, amid Russia's attack on Ukraine, at a residential area in Kharkiv, Ukraine June 9, 2022. REUTERS/Ivan Alvarado 

A firefighter works following a military strike, amid Russia's attack on Ukraine, on the outskirts of Kharkiv, Ukraine June 9, 2022. REUTERS/Ivan Alvarado 

Firefighters work following a military strike, amid Russia's attack on Ukraine, on the outskirts of Kharkiv, Ukraine June 9, 2022. REUTERS/Ivan Alvarado 

A firefighter works following a military strike, amid Russia's attack on Ukraine, on the outskirts of Kharkiv, Ukraine June 9, 2022. REUTERS/Ivan Alvarado 

Ukrainian service members walk on the road near the town of Soledar, amid Russia's invasion of Ukraine, Donetsk region, Ukraine June 8, 2022. REUTERS/Gleb Garanich 

A resident prepares food in a bomb shelter, amid Russia's invasion of Ukraine, in the town of Soledar, Donetsk region Ukraine June 8, 2022. REUTERS/Gleb Garanich 

A Ukrainian serviceman commands as a tank rides on a truck on the road, amid Russia's invasion of Ukraine, in Donetsk region, Ukraine June 8, 2022. REUTERS/Gleb Garanich 

Textbooks are scattered across the ground near a destroyed school after a morning shelling, amid Russia's invasion of Ukraine, near the town of Bakhmut, Donetsk region Ukraine June 8, 2022. REUTERS/Gleb Garanich 

Textbooks are scattered across the ground near a destroyed school after a morning shelling, amid Russia's invasion of Ukraine, near the town of Bakhmut, Donetsk region Ukraine June 8, 2022. REUTERS/Gleb Garanich 

Ukrainian servicemen wave as they ride atop an armoured fighting vehicle, amid Russia's attack on Ukraine, in Donetsk region, Ukraine June 8, 2022. REUTERS/Stringer 

Ukrainian servicemen wave as they ride atop an armoured fighting vehicle, amid Russia's attack on Ukraine, in Donetsk region, Ukraine June 8, 2022. REUTERS/Stringer 

A Ukrainian serviceman commands as a tank rides on a truck on the road, amid Russia's invasion of Ukraine, in Donetsk region, Ukraine June 8, 2022. REUTERS/Gleb Garanich 

A resident sits on a bed inside a bomb shelter, amid Russia's invasion of Ukraine, in the town of Soledar, Donetsk region, Ukraine June 8, 2022. REUTERS/Gleb Garanich 

A resident rests inside a bomb shelter, amid Russia's invasion of Ukraine, in the town of Soledar, Donetsk region, Ukraine June 8, 2022. REUTERS/Gleb Garanich 

Grass is on fire near a destroyed grain silos after the morning shelling near the town of Soledar, amid Russia's invasion of Ukraine, Donetsk region, Ukraine June 8, 2022. REUTERS/Gleb Garanich 

Remains of a Russian Tochka-U ballistic missile are seen in a winter wheat field, amid Russia's invasion of Ukraine, near the town of Soledar, Donetsk region Ukraine June 8, 2022. REUTERS/Gleb Garanich 

A Ukrainian serviceman stands near a military truck with a tank on the road, amid Russia's invasion of Ukraine, in Donetsk region, Ukraine June 8, 2022. REUTERS/Gleb Garanich 

A Ukrainian serviceman walks near a military truck with a tank on the road, amid Russia's invasion of Ukraine, in Donetsk region, Ukraine June 8, 2022. REUTERS/Gleb Garanich 

A Ukrainian serviceman checks remains of a Russian missile in a crater after shelling, amid Russia's invasion of Ukraine, near the town of Soledar, Donetsk region Ukraine June 8, 2022. REUTERS/Gleb Garanich 

Smoke rises after shelling, amid Russia's invasion of Ukraine, near the town of Soledar, Donetsk region, Ukraine June 8, 2022. REUTERS/Gleb Garanich 

Victoria, the wife of senior (first) lieutenant Vasyl Herych, 31, a service member of the 15th Separate Mountain Assault Battalion, who was killed in a fight during Russia's invasion, reacts during his funeral in Perechyn, Zakarpattia region, Ukraine June 8, 2022. REUTERS/Serhii Hudak 

Ukrainian service members kneel during a funeral procession of senior (first) lieutenant Vasyl Herych, 31, a service member of the 15th Separate Mountain Assault Battalion, who was killed in a fight during Russia's invasion, in Perechyn, Zakarpattia region, Ukraine June 8, 2022. REUTERS/Serhii Hudak 

Relatives react during the funeral of senior (first) lieutenant Vasyl Herych, 31, a service member of the 15th Separate Mountain Assault Battalion, who was killed in a fight during Russia's invasion, in Perechyn, Zakarpattia region, Ukraine June 8, 2022. REUTERS/Serhii Hudak 

Local residents kneel during a funeral procession of a senior (first) lieutenant Vasyl Herych, 31, a service member of the 15th Separate Mountain Assault Battalion, who was killed in a fight during Russia's invasion, in Perechyn, Zakarpattia region, Ukraine June 8, 2022. REUTERS/Serhii Hudak 

A flower is pictured in front of the destroyed regional administration building as Russia's attacks on Ukraine continue, in Mykolaiv, Ukraine June 8, 2022. REUTERS/Edgar Su 

A view of the destroyed regional administration building, as Russia's attacks on Ukraine continue, in Mykolaiv, Ukraine June 8, 2022. REUTERS/Edgar Su 

Captain Dmytro Pletenchuk, spokesman for the Mykolaiv regional government, shows the destroyed regional administration building, as Russia's attacks on Ukraine continue, in Mykolaiv, Ukraine June 8, 2022. REUTERS/Edgar Su 

A local resident inspects a damaged van following a military strike, amid Russia's attack on Ukraine, at a residential area in Kharkiv, Ukraine June 8, 2022. REUTERS/Ivan Alvarado 

A child sleeps inside a pram next to a damaged van following a military strike, amid Russia's attack on Ukraine, at a residential area in Kharkiv, Ukraine June 8, 2022. REUTERS/Ivan Alvarado 

Workers remove debris from a supermarket in a shopping mall damaged by a Russian missile strike, as Russia's attack on Ukraine continues, in Kharkiv, Ukraine June 8, 2022. REUTERS/Ivan Alvarado 

Local residents remove debris from a supermarket in a shopping mall damaged by a Russian missile strike, as Russia's attack on Ukraine continues, in Kharkiv, Ukraine June 8, 2022. REUTERS/Ivan Alvarado 

Local residents remove debris from a supermarket in a shopping mall damaged by a Russian missile strike, as Russia's attack on Ukraine continues, in Kharkiv, Ukraine June 8, 2022. REUTERS/Ivan Alvarado 

A view shows a roof of a shopping mall damaged by a Russian missile strike, as Russia's attack on Ukraine continues, in Kharkiv, Ukraine June 8, 2022. Picture taken with drone. REUTERS/Ivan Alvarado 

A view shows a roof of a shopping mall damaged by a Russian missile strike, as Russia's attack on Ukraine continues, in Kharkiv, Ukraine June 8, 2022. Picture taken with drone. REUTERS/Ivan Alvarado 

A local resident removes debris from a supermarket in a shopping mall damaged by a Russian missile strike, as Russia's attack on Ukraine continues, in Kharkiv, Ukraine June 8, 2022. REUTERS/Ivan Alvarado 

A police expert works near an apartment building destroyed in a military strike, amid Russia's invasion of Ukraine, in Kurakhove, Ukraine June 7, 2022. REUTERS/Anna Kudriavtseva 

A deminer of Danish NGO demonstrates a search process of explosive devices next to a destroyed armoured fighting vehicle, as Russia's attack on Ukraine continues, outside the town of Ichnia, in Chernihiv region, Ukraine June 7, 2022. REUTERS/Vladyslav Musiienko REFILE - CORRECTING OCCUPATION 

A turret of a destroyed armoured fighting vehicle is seen in a wheat field, as Russia's attack on Ukraine continues, outside the town of Ichnia, in Chernihiv region, Ukraine June 7, 2022. REUTERS/Vladyslav Musiienko TPX IMAGES OF THE DAY 

Ukrainian service members prepare shells for a M777 Howitzer near a frontline, as Russia's attack on Ukraine continues, in Donetsk Region, Ukraine June 6, 2022. REUTERS/Stringer 

Ukrainian service members fire a shell from a M777 Howitzer near a frontline, as Russia's attack on Ukraine continues, in Donetsk Region, Ukraine June 6, 2022. REUTERS/Stringer TPX IMAGES OF THE DAY 

Ukrainian service members rest after firing shells with a M777 Howitzer near a frontline, as Russia's attack on Ukraine continues, in Donetsk Region, Ukraine June 6, 2022. REUTERS/Stringer 

Dried blood is seen on the wall in an apartment building destroyed in a missile strike, amid Russia's invasion of Ukraine, in Sloviansk, Ukraine June 7, 2022. REUTERS/Gleb Garanich 

A local resident Elena, 81, reacts as she leaves her building destroyed by Russian military strike, amid Russia's invasion on Ukraine, in the town of Druzhkivka, in Donetsk region, Ukraine June 6, 2022. REUTERS/Gleb Garanich 

A shell crater is seen near buildings destroyed by Russian military strike, amid Russia's invasion on Ukraine, in the town of Druzhkivka, in Donetsk region, Ukraine June 6, 2022. REUTERS/Gleb Garanich 

Local residents stand near a shell crater in front of buildings destroyed by Russian military strike, amid Russia's invasion on Ukraine, in the town of Druzhkivka, in Donetsk region, Ukraine June 6, 2022. REUTERS/Gleb Garanich 

A dog stands in a damaged house of Inna Bobryntseva, who died during a Russian shelling, as prosecutor's office members exhume her body from the backyard of her house (not pictured), as part of a prosecutor's investigation into war crime cases, as Russia's attack on Ukraine continues, on the outskirt of Kharkiv, Ukraine June 6, 2022. REUTERS/Ivan Alvarado TPX IMAGES OF THE DAY 

Wilting plants are pictured at the house of Inna Bobryntseva, who died during a Russian shelling, as prosecutor's office members prepare to exhume her body from the backyard of her house (not pictured), as part of a prosecutor's investigation into war crime cases, as Russia's attack on Ukraine continues, on the outskirt of Kharkiv, Ukraine June 6, 2022. REUTERS/Ivan Alvarado 

Smoke rises after missile strikes, as Russia's attack on Ukraine continues, in Kyiv, Ukraine June 5, 2022. REUTERS/Vladyslav Sodel 

Smoke rises after missile strikes, as Russia's attack on Ukraine continues, in Kyiv, Ukraine June 5, 2022. REUTERS/Vladyslav Sodel 

A view shows part of Kharkiv National Stadium belonging to Kharkiv University destroyed by Russia's attacks in Kharkiv, Ukraine June 4, 2022. Picture taken June 4, 2022. REUTERS/Ivan Alvarado 

A Ukrainian service member is a pictured at a position on the front line, amid Russia's attack on Ukraine, near Bakhmut, Donbas region Ukraine June 5, 2022. REUTERS/Gleb Garanich