A pierced helmet sits inside a cabin of a Russian military truck, destroyed during fighting between Russian and Ukrainian forces, outside of Kyiv, Ukraine, Friday, April 1, 2022. Emergency relief and evacuation convoys for the besieged Ukrainian city of Mariupol remained in doubt Friday following reports of Russian interference, while Russian officials accused Ukraine of flying helicopter gunships across a border between the two countries and striking an oil depot. (Photo by Vadim Ghirda/AP Photo)





Liana Oleksienko cries as civilians evacuated from Irpin are brought to the center established in the Sviatoshinski district of Kyiv, Ukraine on March 31, 2022. Evacuation of civilians continues in Irpin, near the capital Kyiv amid Russian attacks on Ukraine. (Photo by Metin Aktas/Anadolu Agency via Getty Images)





A Ukrainian serviceman shoots with an assault rifle from a trench at the front line east of Kharkiv on March 31, 2022. Russian forces are repositioning in Ukraine to strengthen their offensive on the Donbass, Nato said on March 31, 2022, on the 36th day of the Russian-Ukrainian conflict, as shelling continues in Kharkiv (north) and Mariupol (south). (Photo by Fadel Senna/AFP Photo)





A Ukrainian rescue worker walks past destroyed Russian military vehicles as he looks for explosive items next to the railway station where the Russian forces were stationed, in the recaptured by the Ukrainian army Trostyanets town, in Sumy region, Ukraine, 29 March 2022 (issued 30 March 2022). Trostyanets was recaptured by the Ukrainian army after the town was under Russian forces from the first days of the war for over a month. Russian troops entered Ukraine on 24 February prompting the country's president to declare martial law and triggering a series of announcements by Western countries to impose severe economic sanctions on Russia. (Photo by Roman Pilipey/EPA/EFE)





A child looks out from a bus holding balloons in the colours of the Ukrainian flag after fleeing the war from neighbouring Ukraine at the border crossing in Medyka, southeastern Poland, Friday, April 1, 2022. (Photo by Sergei Grits/AP Photo)





Military gear left behind by Russian soldiers lay scattered near a tank during a military sweep by Ukrainian soldiers after the Russians' withdrawal from the area on the outskirts of Kyiv, Ukraine, Friday, April 1, 2022. (Photo by Rodrigo Abd/AP Photo)





Local residents walk past an apartment building destroyed during Ukraine-Russia conflict in the besieged southern port city of Mariupol, Ukraine on March 31, 2022. (Photo by Alexander Ermochenko/Reuters)





A man walks past a burning gas pipeline that was hit during shelling from Russian positions in a neighbourhood in northern Kharkiv as Russia's attack on Ukraine continues, Ukraine, March 31 2022. (Photo by Thomas Peter/Reuters)





Relatives and friends mourn next to the coffin of Private Volodymyr Dukh, 29, who was killed in battle amid Russia’s attack on Ukraine, at the Lychakiv cemetery, in Lviv, April 1, 2022. (Photo by Alkis Konstantinidis/Reuters)





A Ukrainian service member walks next to destroyed Russian military vehicles, as Russia's attack on Ukraine continues, in the village of Dmytrivka in Kyiv region, Ukraine on April 1, 2022. (Photo by Oleksandr Klymenko/Reuters)





Ukrainian soldiers operate inside an abandoned house during a military sweep to search for possible remnants of Russian troops after their withdrawal from villages in the outskirts of Kyiv, Ukraine, Friday, April 1, 2022. (Photo by Rodrigo Abd/AP Photo)





Mariya Ol'hovs'ka mourns the death of her 72-year-old father Valerii Ol'hovs'kyi, killed by a Russian missile days earlier near his home, on the outskirts of Kyiv, Ukraine, Friday, April 1, 2022. Maria and her family buried her father in the garden of their home as they could not bury him in the village cemetery due to fighting between the Ukrainian and Russian armies. (Photo by Rodrigo Abd/AP Photo)





Flowers lay on a Ukrainian military armored fighting vehicle destroyed during fighting between Russian and Ukrainian forces on the outskirts of Kyiv, Ukraine, Friday, April 1, 2022. (Photo by Vadim Ghirda/AP Photo)





A gas station burns after Russian attacks in the city of Kharkiv, on March 30, 2022, amid Russian invasion of Ukraine. (Photo by Fadel Senna/AFP Photo)





Destroyed Russian armored vehicles sit on the outskirts of Kyiv, Ukraine, Thursday, March 31, 2022. (Photo by Rodrigo Abd/AP Photo)





Ukrainian soldiers approach a trench that had been used by Russian soldiers as they retake an area on the outskirts of Kyiv, Ukraine, Friday, April 1, 2022. (Photo by Rodrigo Abd/AP Photo)





Ukrainian refugees wait in line to cross the Ukraine-Poland border, after fleeing the Russian invasion of Ukraine, outside the border crossing checkpoint in Shehyni, Ukraine, March 31, 2022. (Photo by Hannah McKay/Reuters)





A medieval knight armor is displayed at a check point, on the outskirts of Kyiv, Ukraine, Thursday, March 31, 2022. (Photo by Rodrigo Abd/AP Photo)





This picture taken on April 1, 2022 shows an aerial view of a giant sign being raised by protesters depicting Russia's President Vladimir Putin as an octopus with its arms wrapping around the countries of Georgia, Syria, Ukraine, and the world globe during demonstration in the city of Binnish in Syria's northwestern rebel-held Idlib province against Russia's invasion of Ukraine. (Photo by Omar Haj Kadour/AFP Photo)





This photo taken and handout on April 01, 2022 shows a delegation member chant and dance before Pope Francis during an audience to Canada's Indigenous delegations at the Vatican. Pope Francis on April 01 apologised for the decades of abuse at church-run residential schools in Canada and said he would visit the country in late July. (Photo by Vatican Media /Handout via AFP Photo)





Singapore Airlines stewardesses walk past a giant lollipop candy display at Changi International Airport in Singapore on April 1, 2022, as Singapore reopened its land and air borders to travellers fully vaccinated against the Covid-19 coronavirus. (Photo by Roslan Rahman/AFP Photo)





An artist performs during the closing ceremony of the Dubai Expo 2020, in Dubai, United Arab Emirates, March 31, 2022. (Photo by Rula Rouhana/Reuters)





An artist paints the scene as members of the Household Cavalry take part in preparations ahead of the Queen's Platinum Jubilee, in London, Britain on March 31, 2022. (Photo by Tom Nicholson/Reuters)





A woman walks past an exhibition of photography in Trafalgar Square in London, Britain, April 1, 2022. (Photo by John Sibley/Reuters)





A rabbit stands by near Ferra Afonso viewpoint in Velas as small earthquakes have been recorded in Sao Jorge island, Azores, Portugal, March 31, 2022. (Photo by Pedro Nunes/Reuters)





Racegoers pose for a photo during the Coral Scottish Grand National Ladies Day at Ayr Racecourse, Ayr, United Kingdom on Friday, April 1, 2022. (Photo by Steve Welsh/PA Images via Getty Images)