A view from a window of a residential building damaged by shelling, as Russia's invasion of Ukraine continues, in Kyiv, Ukraine, March 18, 2022. REUTERS/Mykola Tymchenko 

A woman reacts while speaking near a block of flats, which was destroyed during Ukraine-Russia conflict in the besieged southern port city of Mariupol, Ukraine March 17, 2022. REUTERS/Alexander Ermochenko TPX IMAGES OF THE DAY 

A bloodstain is seen on a door inside a residential building damaged by shelling, as Russia's invasion of Ukraine continues, in Kyiv, Ukraine, March 18, 2022. REUTERS/Mykola Tymchenko TPX IMAGES OF THE DAY 

A woman prays during a memorial service for a fallen Ukrainian soldier, as Russia’s invasion of Ukraine continues, at the Saints Peter and Paul garrison church in Lviv, Ukraine March 18, 2022. REUTERS/Kai Pfaffenbach TPX IMAGES OF THE DAY 

Smoke rises above buildings near Lviv airport, as Russia's invasion of Ukraine continues, in Lviv, Ukraine, March 18, 2022. REUTERS/Roman Baluk 

A view of a destroyed children's preschool in a residential district of Kyiv after it was hit by shelling, as Russia's invasion of Ukraine continues, in Kyiv, Ukraine, March 18, 2022. REUTERS/Vladyslav Musiienko TPX IMAGES OF THE DAY 

A woman climbs down a stepladder after she lit candles inside an Orthodox church, as Russia's invasion of Ukraine continues, in downtown Odessa, Ukraine, March 17, 2022. REUTERS/Nacho Doce TPX IMAGES OF THE DAY 

A person looks at 109 empty prams placed in the center of Lviv during the "Price of War" campaign organized by local activists and authorities to highlight the large number of children killed in ongoing Russia's invasion of Ukraine, in Lviv, March 18, 2022. REUTERS/Roman Baluk TPX IMAGES OF THE DAY 

Smoke rises after shelling near Kyiv, Ukraine March 17, 2022. REUTERS/Gleb Garanich TPX IMAGES OF THE DAY 

People gather near a blocks of flats, which was destroyed during Ukraine-Russia conflict in the besieged southern port city of Mariupol, Ukraine March 17, 2022. REUTERS/Alexander Ermochenko TPX IMAGES OF THE DAY 

Firefighters work at the site of a fire at the Barabashova market, as Russia's invasion of Ukraine continues, in Kharkiv, Ukraine March 17, 2022. REUTERS/Oleksandr Lapshyn TPX IMAGES OF THE DAY 

The mother of Major Ivan Skrypnyk, who died as a result of Russia's missile attack on the Ukrainian military base in Yavoriv, reacts during his funeral, following Russia's invasion of Ukraine, at Lychakiv Cemetery, in Lviv, Ukraine, March 17, 2022. REUTERS/Pavlo Palamarchuk TPX IMAGES OF THE DAY 

Vladimir Galinkov packs his belongings to evacuate his damaged apartment after his residential building was hit by an intercepted missile, as Russia's invasion of Ukraine continues, in Kyiv, Ukraine March 17, 2022. REUTERS/Thomas Peter TPX IMAGES OF THE DAY 

People receive food as they board a coach to be evacuated abroad, amid Russia's invasion of Ukraine, in Odessa, Ukraine March 18, 2022. REUTERS/Igor Tkachenko 

A man says goodbye to his dogs, before their evacuation abroad, amid Russia's invasion of Ukraine, in Odessa, Ukraine March 18, 2022. REUTERS/Igor Tkachenko 

A woman cries while carrying her child after fleeing from Ukraine to Romania, following Russia's invasion of Ukraine, at the border crossing in Siret, Romania, March 18, 2022. REUTERS/Clodagh Kilcoyne 

Rescuers work on remains of a building damaged by shelling, as Russia's invasion of Ukraine continues, in Kharkiv, Ukraine March 18, 2022. REUTERS/Oleksandr Lapshyn 

A paramedic helps a woman injured at the site of a residential district of Kyiv after it was hit by shelling, as Russia's invasion of Ukraine continues, in Kyiv, Ukraine, March 18, 2022. REUTERS/Vladyslav Musiienko TPX IMAGES OF THE DAY 

Bloodstains are seen inside a residential building damaged by shelling, as Russia's invasion of Ukraine continues, in Kyiv, Ukraine, March 18, 2022. REUTERS/Mykola Tymchenko 

A woman reacts after a residential district was damaged by shelling, as Russia's invasion of Ukraine continues, in Kyiv, Ukraine, March 18, 2022. REUTERS/Marko Djurica 

A man stands inside his apartment after a residential district was damaged by shelling, as Russia's invasion of Ukraine continues, in Kyiv, Ukraine, March 18, 2022. REUTERS/Marko Djurica 

A Ukrainian policeman secures the area at a residential district that was damaged by shelling, as Russia's invasion of Ukraine continues, in Kyiv, Ukraine, March 18, 2022. REUTERS/Marko Djurica 

Bloody towel is pictured at a residential district that was damaged by shelling, as Russia's invasion of Ukraine continues, in Kyiv, Ukraine, March 18, 2022. REUTERS/Marko Djurica 

People walk on the site damaged by shelling, as Russia's invasion of Ukraine continues, in Kyiv, Ukraine, March 18, 2022. REUTERS/Mykola Tymchenko 

A resident stands outside her damaged house after an intercepted missile wrecked her neighbourhood as Russia's attack on Ukraine continues, in Kyiv, Ukraine March 18, 2022. REUTERS/Thomas Peter 

Police officers guard an area where an intercepted missile damaged several residential buildings, as Russia's attack on Ukraine continues, in Kyiv, Ukraine March 18, 2022. REUTERS/Thomas Peter 

A general view of 109 empty prams placed in the center of Lviv during the "Price of War" campaign organized by local activists and authorities to highlight the large number of children killed in ongoing Russia's invasion of Ukraine, in Lviv, March 18, 2022. REUTERS/Roman Baluk 

A woman prays during a memorial service for a fallen Ukrainian soldier, as Russia?s invasion of Ukraine continues, at the St. Peters and Paul Garrison church in Lviv, Ukraine March 18, 2022. REUTERS/Kai Pfaffenbach 

A view of a residential building that was damaged by an intercepted missile in Kyiv as Russia's attack on Ukraine continues, Ukraine. Picture taken with a drone. March 18, 2022. REUTERS/Thomas Peter 

A firefighter works at the site damaged by shelling in a residential district of Kyiv, as Russia's invasion of Ukraine continues, in Kyiv, Ukraine, March 18, 2022. REUTERS/Vladyslav Musiienko 

People react after a residential district was damaged by shelling, as Russia's invasion of Ukraine continues, in Kyiv, Ukraine, March 18, 2022. REUTERS/Marko Djurica TPX IMAGES OF THE DAY 

General view shows a residential district damaged by shelling, as Russia's invasion of Ukraine continues, in Kyiv, Ukraine, March 18, 2022. REUTERS/Marko Djurica 

Destroyed cars are seen at the site damaged by shelling in a residential district of Kyiv, as Russia's invasion of Ukraine continues, in Kyiv, Ukraine, March 18, 2022. REUTERS/Vladyslav Musiienko 

A woman reacts in a residential district damaged by shelling, as Russia's invasion of Ukraine continues, in Kyiv, Ukraine, March 18, 2022. REUTERS/Vladyslav Musiienko 

A view of a destroyed building in a residential district of Kyiv after it was hit by shelling, as Russia's invasion of Ukraine continues, in Kyiv, Ukraine, March 18, 2022. REUTERS/Vladyslav Musiienko 

A view of a destroyed children's preschool in a residential district of Kyiv after it was hit by shelling, as Russia's invasion of Ukraine continues, in Kyiv, Ukraine, March 18, 2022. REUTERS/Vladyslav Musiienko 

Rescue workers move the body of a person who was killed when a shell hit a residential building, as Russia's invasion of Ukraine continues, in Kyiv, Ukraine March 18, 2022. REUTERS/Thomas Peter 

Smoke rises from a factory building near Lviv airport, as Russia's invasion of Ukraine continues, in Lviv, Ukraine, March 18, 2022. REUTERS/Kai Pfaffenbach