Russian service members and cadets attend the morning prayers to celebrate Eid al-Fitr marking the end of the holy month of Ramadan in the Kul Sharif Mosque in Kazan, Russia on May 13, 2021. (Photo by Alexey Nasyrov/Reuters)





Muslims take part in Eid al Fitr prayers at the Kul Sharif Mosque in Kazan, Russia, Thursday, May 13, 2021. Millions of Muslims across the world are celebrating the Eid al Fitr holiday, which marks the end of the month-long fast of Ramadan. (Photo by Dmitri Lovetsky/AP Photo)





Children run past a sign reading “Ramadan” with the Central Mosque “Heart of Chechnya” in the background during celebrations of Eid al-Fitr holiday, a feast celebrated by Muslims worldwide, in Grozny, Russia, Thursday, May 13, 2021. Eid al-Fitr marks the end of the Muslims' holy fasting month of Ramadan. (Photo by Musa Sadulayev/AP Photo)





Russian Muslims attend a morning prayer session to celebrate Eid al-Fitr, which marks the end of Ramadan, at the Moscow Cathedral Mosque, in Moscow, Russia 13 May 2021. Muslims around the world are celebrating Eid al-Fitr, the three day festival marking the end of the Muslim holy fasting month of Ramadan. Eid al-Fitr is one of the two major holidays in Islam. (Photo by Maxim Shipenkov/EPA/EFE)





Street vendors sell clothes and flowers near a block of flats with a mural depicting Russian President Vladimir Putin in the town of Kashira in Moscow Region, Russia on May 15, 2021. (Photo by Maxim Shemetov/Reuters)





A helmet is seen inside a car before the Russian Weekend Drags races of U.S. retro and muscle cars in Bykovo outside Moscow, Russia on May 16, 2021. (Photo by Maxim Shemetov/Reuters)





A participant's Chevrolet Bel Air fails to start during the Russian Weekend Drags races of U.S. retro and muscle cars in Bykovo outside Moscow, Russia on May 16, 2021. (Photo by Maxim Shemetov/Reuters)





A woman looks on as she sits on a motorcycle next to the U.S. national flag during the Russian Weekend Drags races of U.S. retro and muscle cars, in Bykovo, outside Moscow, Russia on May 16, 2021. (Photo by Maxim Shemetov/Reuters)





A participant competes in the Russian Weekend Drags races of U.S. retro and muscle cars in Bykovo outside Moscow, Russia on May 16, 2021. (Photo by Maxim Shemetov/Reuters)





A mechanic adjusts a windshield wiper during the Russian Weekend Drags races of U.S. retro and muscle cars in Bykovo outside Moscow, Russia on May 16, 2021. (Photo by Maxim Shemetov/Reuters)





A swan swims at a pond in a park in Stavropol, Russia on May 19, 2021. (Photo by Eduard Korniyenko/Reuters)





An officer speaks on walkie-talkie as the Bastion anti-ship missile systems take positions on the Alexandra Land island near Nagurskoye, Russia, Monday, May 17, 2021. Bristling with missiles and radar, Russia's northernmost military base projects the country's power and influence across the Arctic from a remote, desolate island amid an intensifying international competition for the region's vast resources. Russia's northernmost military outpost sits on the 80th parallel North, projecting power over wide swathes of Arctic amid an intensifying international rivalry over the polar region's vast resources. (Photo by Alexander Zemlianichenko/AP Photo)





Members of the Loktev Ensemble perform during the opening of the 18th Moscow Meets Friends International Festival at the Moscow International House of Music in Moscow, Russia on May 18, 2021. (Photo by Artyom Geodakyan/TASS)





Mourners stand near the grave of Elvira Ignatieva, an English language teacher killed in the massacre at School Number 175, during a funeral at a cemetery in Kazan, Russia on May 12, 2021. (Photo by Alexey Nasyrov/Reuters)





Ilnaz Galyaviyev, wearing a face mask to protect against coronavirus, sits during a hearing in a courtroom in Kazan, Russia, Wednesday, May 12, 2021. Russian officials say Galyaviyev attacked a school in the city of Kazan and Russian officials say several people have been killed. Russian media said the gunman was a former student at the school who called himself “a god” on his account on the messaging app Telegram and promised to “kill a large amount of biomass” on the morning of the shooting. Authorities also say over 20 others have been hospitalised with wounds. (Photo by Dmitri Lovetsky/AP Photo)





A woman lays flowers at a makeshift memorial for victims of a deadly shooting at School Number 175 in Kazan, Russia on May 12, 2021. (Photo by Artem Dergunov/Reuters)





A woman places a toy at a makeshift memorial for victims of the shooting at School No. 175 in Kazan on May 11, 2021. At least nine people, most of them children, were killed on May 11, 2021 when a lone teenage gunman opened fire at a school in the central Russian city of Kazan, officials said. (Photo by Natalia Kolesnikova/AFP Photo)





A Russian Rosguardia (National Guard) soldier stands guard at a school after a shooting on Tuesday in Kazan, Russia, Thursday, May 13, 2021, with toys brought by people in the foreground. Russian officials say a gunman attacked a school in the city of Kazan and Russian officials say several people have been killed. (Photo by Dmitri Lovetsky/AP Photo)





People lay flowers and toys near a school after a shooting on Tuesday in Kazan, Russia, Thursday, May 13, 2021. Russian officials say a gunman attacked a school in the city of Kazan and Russian officials say several people have been killed. Officials said the dead in Tuesday's shooting include students, a teacher and a school worker. Authorities also say over 20 others have been hospitalised with wounds. (Photo by Dmitri Lovetsky/AP Photo)





A woman rests during the sunset in front of the 'Druzhba Narodov' (Fraternity of peoples) fountain in the All-Russia Exhibition Centre (VDNKh) in Moscow on May 17, 2021. (Photo by Kirill Kudryavtsev/AFP Photo)