A large crater is visible in a college yard from overnight shelling as Russia’s attack on Ukraine continues in Kharkiv, Ukraine, July 5, 2022. REUTERS/Vyacheslav Madiyevskyy 

Firefighters check over the scene of a shelling, that created a massive crater but avoided injuries or any structural damage just minutes earlier, in the middle of the night, as Russia's attack on Ukraine continues, in Kharkiv, Ukraine, June 30, 2022. Kharkiv, which lies close to the Russian border in northeast Ukraine, has been battered by rockets and shells almost daily the last six months, save for a lull in June. REUTERS/Leah Millis SEARCH "MILLIS UKRAINE FIREFIGHTERS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

A large crater is visible in a school yard from overnight shelling as Russia’s attack on Ukraine continues in Kharkiv, Ukraine, June 27, 2022. REUTERS/Leah Millis 

A cat sits next to a crater left next to a house from overnight shelling as Russia’s attack on Ukraine continues in Kharkiv, Ukraine, June 27, 2022. REUTERS/Leah Millis 

A large crater is visible in a school yard from overnight shelling as Russia’s attack on Ukraine continues in Kharkiv, Ukraine, June 27, 2022. REUTERS/Leah Millis 

A large crater is visible in a school yard from overnight shelling as Russia’s attack on Ukraine continues in Kharkiv, Ukraine, June 27, 2022. REUTERS/Leah Millis 

A crater is seen at a residential area after a Russian missile strike, as Russia's attack on Ukraine continues, in Kharkiv, Ukraine June 26, 2022. REUTERS/Sofiia Gatilova 

A man walks past burned-out cars near a crater left in the aftermath of overnight shelling of an apartment complex as Russia’s attack on Ukraine continues in Kharkiv, Ukraine, June 26, 2022. REUTERS/Leah Millis 

A man cleans up debris next to a crater filled with water from a busted water line caused by overnight shelling, as Russia’s attack on Ukraine continues in Kharkiv, Ukraine, June 26, 2022. REUTERS/Leah Millis 

People watch as members of a specialized team that defuses and removes ordnance including bombs, mines and other munitions survey a crater left in the aftermath of overnight shelling as Russia’s attack on Ukraine continues in Kharkiv, Ukraine, June 26, 2022. REUTERS/Leah Millis 

Members of a specialized team that defuses and removes ordnance including bombs, mines and other munitions survey a crater left in the aftermath of overnight shelling as Russia’s attack on Ukraine continues in Kharkiv, Ukraine, June 26, 2022. REUTERS/Leah Millis 

A vase lays next to a massive crater filled with water from a busted water line caused by overnight shelling, as Russia’s attack on Ukraine continues in Kharkiv, Ukraine, June 26, 2022. REUTERS/Leah Millis 

A crater is seen at a compound of a kindergarten after a Russian missile strike, as Russia's attack on Ukraine continues, in Kyiv, Ukraine June 26, 2022. REUTERS/Valentyn Ogirenko 

A crater is seen at a compound of a kindergarten after a Russian missile strike, as Russia's attack on Ukraine continues, in Kyiv, Ukraine June 26, 2022. REUTERS/Valentyn Ogirenko 

A local resident walks near shell craters following recent shelling during the Ukraine-Russia conflict in Donetsk, Ukraine June 23, 2022. REUTERS/Alexander Ermochenko 

A view shows a crater in the courtyard of a residential building located in Vannikova street following recent shelling in the course of Ukraine-Russia conflict in Donetsk, Ukraine June 20, 2022. REUTERS/Alexander Ermochenko 

A view shows a crater in the courtyard of a residential building located in Vannikova street following recent shelling in the course of Ukraine-Russia conflict in Donetsk, Ukraine June 20, 2022. REUTERS/Alexander Ermochenko 

People gather near a crater in the courtyard of a residential building located in Vannikova street following recent shelling in the course of Ukraine-Russia conflict in Donetsk, Ukraine June 20, 2022. REUTERS/Alexander Ermochenko 

A passerby surveys a crater in the road caused by overnight shelling which damaged Kharkiv State Zoo Veterinary Academy, as Russia’s attack on Ukraine continues, in Mala Danylivka, Kharkiv Oblast, Ukraine, June 20, 2022. REUTERS/Leah Millis 

Locals toss debris into a crater in the road caused by overnight shelling, as seen through a blown out window of the damaged Kharkiv State Zoo Veterinary Academy, as Russia’s attack on Ukraine continues, in Mala Danylivka, Kharkiv Oblast, Ukraine, June 20, 2022. REUTERS/Leah Millis 

Onlookers survey a crater in the road caused by overnight shelling, as seen through a blown out window of the damaged Kharkiv State Zoo Veterinary Academy, as Russia’s attack on Ukraine continues, in Mala Danylivka, Kharkiv Oblast, Ukraine, June 20, 2022. REUTERS/Leah Millis 

Craters are seen after a shelling next to a village administration building in Kharkiv, amid Russia's attack on Ukraine, June 17, 2022. Picture taken with a drone. REUTERS/Ivan Alvarado 

A crater is seen after a shelling next to a village administration building in Kharkiv, amid Russia's attack on Ukraine, June 17, 2022. Picture taken with a drone. REUTERS/Ivan Alvarado 

A crater is seen after a shelling next to a village administration building in Kharkiv, amid Russia's attack on Ukraine, June 17, 2022. REUTERS/Ivan Alvarado 

A crater is seen after a shelling next to a village administration building in Kharkiv, amid Russia's attack on Ukraine, June 17, 2022. REUTERS/Ivan Alvarado 

Experts work in a crater after a Russian missile strike, amid Russia's invasion on Ukraine, in the town of Pokrovsk, in Donetsk region, Ukraine June 15, 2022. REUTERS/Gleb Garanich 

Experts work in a crater after a Russian missile strike, amid Russia's invasion on Ukraine, in the town of Pokrovsk, in Donetsk region, Ukraine June 15, 2022. REUTERS/Gleb Garanich 

Long streams of red-hot lava flow down the southeast crater of Mount Etna, Europe's tallest and most active volcano, seen from Zafferana Etnea, Italy, June 11, 2022. Picture taken June 11, 2022. REUTERS/Antonio Parrinello 

Long streams of red-hot lava flow down the southeast crater of Mount Etna, Europe's tallest and most active volcano, seen from Zafferana Etnea, Italy, June 11, 2022. Picture taken June 11, 2022. REUTERS/Antonio Parrinello 

A view of Mount Etna, Europe's highest and most active volcano, crater of Sud-Est on the island of Sicily, Italy, June 11, 2022. Picture taken June 11, 2022. REUTERS/Antonio Parrinello 

Long streams of red-hot lava flow down the southeast crater of Mount Etna, Europe's tallest and most active volcano, seen from Zafferana Etnea, Italy, June 11, 2022. Picture taken June 11, 2022. REUTERS/Antonio Parrinello 

Long streams of red-hot lava flow down the southeast crater of Mount Etna, Europe's tallest and most active volcano, seen from Zafferana Etnea, Italy, June 11, 2022. Picture taken June 11, 2022. REUTERS/Antonio Parrinello 

Long streams of red-hot lava flow down the southeast crater of Mount Etna, Europe's tallest and most active volcano, seen from Zafferana Etnea, Italy, June 11, 2022. Picture taken June 11, 2022. REUTERS/Antonio Parrinello 

Long streams of red-hot lava flow down the southeast crater of Mount Etna, Europe's tallest and most active volcano, seen from Zafferana Etnea, Italy, June 11, 2022. Picture taken June 11, 2022. REUTERS/Antonio Parrinello 

Long streams of red-hot lava flow down the southeast crater of Mount Etna, Europe's tallest and most active volcano, seen from Zafferana Etnea, Italy, June 11, 2022. Picture taken June 11, 2022. REUTERS/Antonio Parrinello 

Long streams of red-hot lava flow down the southeast crater of Mount Etna, Europe's tallest and most active volcano, seen from Zafferana Etnea, Italy, June 11, 2022. Picture taken June 11, 2022. REUTERS/Antonio Parrinello 

Long streams of red-hot lava flow down the southeast crater of Mount Etna, Europe's tallest and most active volcano, seen from Zafferana Etnea, Italy, June 11, 2022. Picture taken June 11, 2022. REUTERS/Antonio Parrinello 

Long streams of red-hot lava flow down the southeast crater of Mount Etna, Europe's tallest and most active volcano, seen from Zafferana Etnea, Italy, June 11, 2022. Picture taken June 11, 2022. REUTERS/Antonio Parrinello 

Members of Italy's Forestry Department watch lava flowing down the southeast crater of Mount Etna, Europe's tallest and most active volcano, seen from Zafferana Etnea, Italy, June 11, 2022. Picture taken June 11, 2022. REUTERS/Antonio Parrinello 

Long streams of red-hot lava flow down the southeast crater of Mount Etna, Europe's tallest and most active volcano, seen from Zafferana Etnea, Italy, June 11, 2022. Picture taken June 11, 2022. REUTERS/Antonio Parrinello TPX IMAGES OF THE DAY 

Members of Italy's Forestry Department watch lava flowing down the southeast crater of Mount Etna, Europe's tallest and most active volcano, seen from Zafferana Etnea, Italy, June 11, 2022. Picture taken June 11, 2022. REUTERS/Antonio Parrinello 

Long streams of red-hot lava flow down the southeast crater of Mount Etna, Europe's tallest and most active volcano, seen from Zafferana Etnea, Italy, June 11, 2022. Picture taken June 11, 2022. REUTERS/Antonio Parrinello 

Long streams of red-hot lava flow down the southeast crater of Mount Etna, Europe's tallest and most active volcano, seen from Zafferana Etnea, Italy, June 11, 2022. Picture taken June 11, 2022. REUTERS/Antonio Parrinello 

A crater is seen in front of a school following a military strike, amid Russia's attack on Ukraine, on the outskirts of Kharkiv, Ukraine June 10, 2022. REUTERS/Ivan Alvarado 

Ukrainian service members inspect a shell crater, amid Russia's invasion of Ukraine, near the town of Soledar, Donetsk region Ukraine June 8, 2022. REUTERS/Gleb Garanich 

Ukrainian service members inspect a shell crater, amid Russia's invasion of Ukraine, near the town of Soledar, 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 

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 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 

A crater left by a cruise missile hit is seen at a compound of the Darnytsia Car Repair Plant, as Russia's attacks Ukraine in continues, in Kyiv, Ukraine June 5, 2022. REUTERS/Valentyn Ogirenko 

A crater is seen in front of a hangar at a damaged private airfield following a military strike, amid Russia's attack on Ukraine, on the outskirts of Kharkiv, Ukraine June 4, 2022. Picture taken with drone. REUTERS/Ivan Alvarado 

A crater is seen at a damaged private airfield following a military strike, amid Russia's attack on Ukraine, on the outskirts of Kharkiv, Ukraine June 4, 2022. Picture taken with drone. REUTERS/Ivan Alvarado 

A crater is seen in front of a hangar at a damaged private airfield following a military strike, amid Russia's attack on Ukraine, on the outskirts of Kharkiv, Ukraine June 4, 2022. Picture taken with drone. REUTERS/Ivan Alvarado 

A crater is seen in front of a hangar at a damaged private airfield following a military strike, amid Russia's attack on Ukraine, on the outskirts of Kharkiv, Ukraine June 4, 2022. REUTERS/Ivan Alvarado 

A crater is seen in front of a hangar at a damaged private airfield following a military strike, amid Russia's attack on Ukraine, on the outskirts of Kharkiv, Ukraine June 4, 2022. Picture taken with drone. REUTERS/Ivan Alvarado 

A crater is seen in front of a hangar at a damaged private airfield following a military strike, amid Russia's attack on Ukraine, on the outskirts of Kharkiv, Ukraine June 4, 2022. REUTERS/Ivan Alvarado 

A view of a crater next to a damaged wood warehouse after a strike, amid Russia's attack on Ukraine, in the outskirt of Kharkiv, Ukraine June 3, 2022. Picture taken with drone. REUTERS/Ivan Alvarado 

Vladimir Mihailovich, a solar plant manager, walks inside a crater after a shelling hit the station that was producing 2.5 megawatts of power, amid Russia's attack on Ukraine, in the town of Merefa on the outskirts of Kharkiv, Ukraine May 28, 2022. Picture taken with a drone. REUTERS/Ivan Alvarado 

Vladimir Mihailovich, a solar plant manager, walks next to a crater after a shelling hit the station that was producing 2.5 megawatts of power, amid Russia's attack on Ukraine, in the town of Merefa on the outskirts of Kharkiv, Ukraine May 28, 2022. Picture taken with a drone. REUTERS/Ivan Alvarado TPX IMAGES OF THE DAY 

Vladimir Mihailovich, a solar plant manager, stands next to a crater formed after a shelling hit the station that was producing 2.5 megawatts of power, amid Russia's attack on Ukraine, in the town of Merefa on the outskirts of Kharkiv, Ukraine May 28, 2022. Picture taken with a drone. REUTERS/Ivan Alvarado