White House says it "stands with the victims of the terrible attack" The United States had warned Russia in March of a terrorist attack likely to target "large gatherings" in Moscow. Many European governments or heads of state expressed their sadness and condemnation after the attack.
China “strongly condemns the terrorist attack and firmly supports the Russian government’s efforts to safeguard its national security and stability,” President Xi Jinping wrote in a message to his counterpart Vladimir Putin. Many other countries around the world have expressed their condolences, with the notable exception of Ukraine.