People mourn at the Crocus City Hall concert venue following a terrorist attack in Krasnogorsk, outside Moscow, Russia, 23 March 2024. On 22 March evening, a group of up to five gunmen attacked the Crocus City Hall in the Moscow region, Russian emergency services said. At least 115 people were killed and more than 100 others were hospitalized, the Investigative Committee confirmed. The head of the Russian FSB, Alexander Bortnikov, reported to Russian President Vladimir Putin on 23 March on the arrest of 11 people, including all four terrorists directly involved in the terrorist attack. (Photo by Maxim Shipenkov/EPA)





A person places flowers at a makeshift memorial in front of the Crocus City Hall, a day after a gun attack in Krasnogorsk, outside Moscow, on March 23, 2024. - Gunmen who opened fire at a Moscow concert hall killed more than 60 people and wounded over 100 while sparking an inferno, authorities said on March 23, 2024, with the Islamic State group claiming responsibility. (Photo by AFP Photo/Stringer)





Cars drive past an electronic screen on facade of a building displaying the message “We mourn” in memory of the victims of a shooting attack at the Crocus City Hall concert venue, in Moscow, Russia, on March 23, 2024. (Photo by Maxim Shemetov/Reuters)





People mourn at a makeshift memorial in front of the Russian embassy in Yerevan on March 23, 2024, a day after a gun attack on the Crocus City Hall in Russia's Krasnogorsk. Camouflaged assailants opened fire at the packed Crocus City Hall in Moscow's northern suburb of Krasnogorsk on March 22, 2024, evening ahead of a concert by Soviet-era rock band Piknik in the deadliest attack in Russia for at least a decade. Russia on March 23, 2024, said it had arrested 11 people – including four gunmen – over the attack on a Moscow concert hall claimed by Islamic State, as the death toll rose to 133 people. (Photo by Karen Minasyan/AFP Photo)





A man lays flowers at a makeshift memorial to the victims, set up outside the Crocus City Hall concert venue in the Moscow Region, Russia, on March 23, 2024. (Photo by Maxim Shemetov/Reuters)





A woman reacts as she lays flowers at a makeshift memorial to the victims at the Crocus City Hall concert venue in the Moscow Region, in Saint Petersburg, on March 23, 2024. (Photo by Anton Vaganov/Reuters)





Russian President Vladimir Putin lights a candle in memory of the victims of the Crocus City Hall attack, on the day of national mourning in a church at the Novo-Ogaryovo state residence outside Moscow, on March 24, 2024. (Photo by Mikhail Metzel/Sputnik)





People walk to lay flowers at a makeshift memorial to the victims of a shooting attack at the Crocus City Hall concert venue in the Moscow Region, Russia, on March 23, 2024. (Photo by Yulia Morozova/Reuters)





A woman holds a candle at a makeshift memorial to the victims of a shooting attack set up outside the Crocus City Hall concert venue in the Moscow Region, Russia, on March 23, 2024. (Photo by Maxim Shemetov/Reuters)





A woman holds a candle at a memorial to the victims of the shooting attack near Moscow, Russia, on March 23, 2024. (Photo by Maxim Shemetov/Reuters)





Women hug next to a makeshift memorial to the victims at the Crocus City Hall concert venue in the Moscow Region, in Saint Petersburg, on March 24, 2024. (Photo by Anton Vaganov/Reuters)





A police officer approaches a woman outside the Crocus City Hall concert venue following Friday's shooting attack, in the Moscow Region, Russia, on March 23, 2024. (Photo by Yulia Morozova/Reuters)





A man lays flowers at a makeshift memorial at the Crocus City Hall concert venue in the Moscow Region, in Saint Petersburg, on March 24, 2024. (Photo by Anton Vaganov/Reuters)





People line up to lay flowers at a makeshift memorial outside the Crocus City Hall concert venue in the Moscow Region, Russia, on March 24, 2024. (Photo by Maxim Shemetov/Reuters)





People lay flowers at a makeshift memorial to the victims of a shooting attack set up outside the Crocus City Hall concert venue in the Moscow Region, Russia, on March 24, 2024. (Photo by Maxim Shemetov/Reuters)





People lay flowers at a makeshift memorial in front of the Crocus City Hall in Krasnogorsk on March 24, 2024, as Russia observes a national day of mourning after a massacre that killed more than 130 people. (Photo by Olga Maltseva/AFP Photo)





People mourn at the Crocus City Hall concert venue following a terrorist attack in Krasnogorsk, outside Moscow, Russia, 25 March 2024. At least 137 people were killed and more than 100 hospitalized after a group of gunmen attacked the concert hall in the Moscow region on 22 March evening, Russian officials said. Eleven suspects, including all four gunmen directly involved in the terrorist attack, have been detained, according to Russian authorities. (Photo by Maxim Shipenkov/EPA/EFE)





A toy is seen at the Crocus City Hall concert venue following a terrorist attack in Krasnogorsk, outside Moscow, Russia, 25 March 2024. (Photo by Maxim Shipenkov/EPA/EFE)





People mourn at the Crocus City Hall concert venue following a terrorist attack in Krasnogorsk, outside Moscow, Russia, 25 March 2024. (Photo by Maxim Shipenkov/EPA/EFE)





People mourn and bring flowers at the Crocus City Hall concert venue following a terrorist attack in Krasnogorsk, outside Moscow, Russia, 25 March 202. (Photo by Maxim Shipenkov/EPA/EFE)