The United States warned the country earlier this month that it feared an attack on large gatherings in Russia.

Earlier this month, the US government had information about a planned terrorist attack in Moscow, US National Security Council spokesman Adrian Watson said. He also said that Washington had informed the Russian authorities. 

The US warned its citizens in Russia about this, but the Kremlin dismissed the warning as 'propaganda'. The death toll rose to 60, IS claimed responsibility
Death toll rises to 60 in Moscow concert hall shooting Along with that, 147 people were rescued in injured condition. Russia's Central Investigation Agency said the death toll could rise. Meanwhile, the international terrorist group Islamic State (IS) has claimed responsibility for the attack. The group's spokesman Amaq agency said in a statement on the social media Telegram, "IS fighters attacked in Moscow, killed more than 100 people and managed to return safely to their base after causing extensive destruction at the scene. According to the latest statement of the Russian investigative agency, According to the information received so far, the bodies of 60 people have been recovered from the Crocus City Hall complex after the terrorist attack." Besides, a total of 147 people were injured. They have been sent to various nearby hospitals.