Partizan fans hold up scarves and flowers in memory of the victims of school shooting a day earlier orior the Euroleague basketball match between Partizan and Real Madrid, in Belgrade, Serbia, Thursday, May 4, 2023. A 13-year-old who opened fire Wednesday at his school in Serbia's capital. He killed eight fellow students and a guard before calling the police and being arrested. Six children and a teacher were also hospitalized. (Photo by Darko Vojinovic/AP Photo)





Boys play soccer in the Complexo da Penha favela, in Rio de Janeiro, Brazil, Saturday, April 29, 2023. (Photo by Bruna Prado/AP Photo)





A parent escorts her child following a shooting at a school in the capital Belgrade on May 3, 2023. Serbian police arrested a student following a shooting at an elementary school in the capital Belgrade on May 3, 2023, the interior ministry said. The shooting occurred at 8:40 am local time (06:40 GMT) at an elementary school in Belgrade's downtown Vracar district. (Photo by Oliver Bunic/AFP Photo)





A girl reacts as she receives a shot of the Pfizer-BioNTech vaccine for COVID-19 in Kathmandu, Nepal, Tuesday, November 23, 2021. Children above the age of 12 are now receiving the vaccine in Nepal. The World Health Organization downgraded its assessment of the coronavirus pandemic on Friday, May 5, 2023, saying it no longer qualifies as a global emergency. (Photo by Niranjan Shrestha/AP Photo)





Mia Rodriguez waits her class' turn to enter school in Salinas, Uruguay, Friday, April 14, 2023. Before getting her prosthetic hands, Mia, whose fingers did not fully develop, did not want to eat next to her classmates and begged to be allowed to eat alone in the kitchen. (Photo by Matilde Campodonico/AP Photo)





A child looks on as Jordanian citizens and other nationals who were evacuated from Sudan, arrive at Marka Military Airport, in Amman, Jordan on April 24, 2023. (Photo by Alaa Al Sukhni/Reuters)





Man and child evacuated from Sudan to escape the conflicts arrive in Abu Dhabi airport, United Arab Emirates on April 29, 2023. (Photo by Rula Rouhana/Reuters)





A mother and child react outside the school, following a mass shooting, after a boy opened fire on others, killing fellow students and staff in Belgrade, Serbia on May 3, 2023. (Photo by Antonio Bronic/Reuters)





People shelter inside a subway station during an air raid alert, amid Russia's attack on Ukraine, in Kyiv, Ukraine on May 4, 2023. (Photo by Alina Smutko/Reuters)





School kids scream and wave flags during King Charles III visit to Liverpool, United Kingdom on April 26, 2023. (Photo by Peter Powell)





Israeli kids look at a car hit by a rocket fired from the Gaza Strip, at the southern Israeli city of Sderot, Tuesday, May 2, 2023. The Israeli military says that Palestinian militants in Gaza have fired a barrage of rockets following the death of Khader Adnan, a high-profile Palestinian prisoner in Israeli custody after a nearly three-month-long hunger strike. (Photo by Ohad Zwigenberg/AP Photo)





Migrants, whose boats sank in the sea and who were rescued by the Libyan Coast Guards at the Mediterranean Sea, arrive on a boat at the port, in Garaboli, Libya on April 25, 2023. (Photo by Hazem Ahmed/Reuters)





A young marcher high fives the crowd as Australian military personnel, past and present, commemorate ANZAC Day during a parade through the city centre in Sydney, Australia on April 25, 2023. (Photo by Jaimi Joy/Reuters)





Pope Francis is greeted as he arrives at the Budapest Liszt Ferenc International Airport during his apostolic journey in Budapest, Hungary on April 28, 2023. (Photo by Vatican Media/­Handout via Reuters)





A child sleeps on the flag of the United States during a protest against migration retention policy on April 23, 2023 in Tapachula, Mexico. (Photo by Jose torres/Agencia Press South/Getty Images)





Sudanese evacuees watch a plane as they wait at Port Sudan before boarding a Saudi military ship to Jeddah port, late Tuesday, May 2, 2023. Exhausted Sudanese and foreigners joined growing crowds at Sudan's main seaport Tuesday, waiting to be evacuated from the chaos-stricken nation. After more than two weeks of fighting, areas of the capital of Khartoum appear increasingly abandoned. (Photo by Amr Nabil/AP Photo)





Lily Boissonneau, 7, jumps in the air as she talks to Republican presidential candidate and former U.S. Ambassador to the United Nations Nikki Haley at a campaign town hall meeting in Bedford, New Hampshire, U.S., April 26, 2023. (Photo by Brian Snyder/Reuters)





US President Joe Biden delivers remarks during “Take Your Child to Work Day” event on the South Lawn of the White House on Thursday, April 27, 2023. (Photo by Demetrius Freeman/The Washington Post)





An indigenous boy talks to police officers standing guard as indigenous people taking part in the Terra Livre Indigenous camp, focused on bringing awareness for indigenous rights and land issues and promoting their culture, protest outside the Congress building in Brasilia on April 24, 2023. The camp runs until April 29, 2023. (Photo by Carl de Souza/AFP Photo)





A wounded child is helped by police officers at a local supermarket following a Russian strike in the southern Ukrainian town of Kherson on April 3, 2023, amid the Russian invasion of Ukraine. Russian strikes on Ukraine's southern Kherson region killed 16 people on Wednesday, local prosecutors said as authorities introduced a curfew in the main city of Kherson starting Friday. (Photo by Dina Pletenchuk/AFP Photo)