Several camouflage-clad gunmen opened fire at a popular concert venue on the outskirts of Moscow on Friday night, killing about 60 people and wounding more than 100, Russian authorities said, making it the deadliest attack in the capital region in more than a decade.
Hours after the mayhem began, the Russian national guard said its officers were still looking for the attackers. State media agencies reported that there had been up to five perpetrators.
As gunshots boomed through the building containing the concert hall, one of the largest and most popular music venues in the Moscow area, fire erupted in the upper floors of the structure, and the blaze intensified after an explosion, causing the roof to collapse.
The Islamic State, through an affiliated news agency, claimed responsibility. U.S. security officials, including a senior counterterrorism official, said they believed the attack was carried out by the Islamic State in Khorasan, a branch of the terrorist group that is active in Pakistan, Afghanistan and Iran. They spoke on the condition of anonymity because they were not authorized to discuss the matter publicly.
Multiple videos posted on social media and verified by The New York Times show several people entering Crocus City Hall, a sprawling shopping and entertainment complex in suburban Krasnogorsk, northwest of Moscow, and firing rifles. Other videos show people running past bloodied victims lying on the floor or screaming at the sound of gunshots, while photos show bodies lined up outside the building.
A woman who gave her name only as Marina said in a text message that she was standing in line for a concert outside, in the cold, about 8 p.m. when people without overcoats started running out of the building, saying they had heard shots.
“As soon as I heard automatic rifle shots, I started running, too,” she said.
The state news agency TASS reported that emergency services had dispatched helicopters to try to rescue people from the building’s roof, where flames and smoke could be seen billowing into the night sky.
At least 115 people were hospitalized after the attack, five of them children, according to the Russian minister of health, Mikhail Murashko. The injured include 60 adult patients in serious condition, the minister said. Another 30 people were treated and released.
The Russian leader, Vladimir V. Putin, made no immediate direct public statement, issuing only a statement through a deputy prime minister, Tatyana Golikova, that expressed hopes for the recovery of the injured and gratitude to the doctors treating them.
Russia’s Investigative Committee, the country’s equivalent to the F.B.I., said it had opened a criminal case into a terrorist act and dispatched its investigators to the site. RIA Novosti said that a special police unit was working inside the building.
John F. Kirby, a spokesman for President Biden’s National Security Council, told reporters that the White House had “no indication at this time that Ukraine or Ukrainians were involved.” Mykhailo Podolyak, a top adviser to Ukraine’s presidential office, said in a video statement that “Ukraine has absolutely nothing to do” with the attack.
On March 7, the U.S. Embassy in Moscow issued a security alert that warned that its personnel were “monitoring reports that extremists have imminent plans to target large gatherings in Moscow, to include concerts.” The statement, which did not say anything about the extremists’ affiliation, warned Americans that an attack could take place in the next 48 hours.
Pro-Kremlin voices seized on the U.S. Embassy’s warning to paint America as trying to scare Russians. On March 19, Mr. Putin called the statement “obvious blackmail” made with “the intention to intimidate and destabilize our society.”
The attack on Friday was connected to the March 7 warning, according to American officials briefed on the matter. They added that the United States alerted Russia privately at the time about intelligence it had about Islamic State activity.
Statements of condolence and outrage came from around the world, including the leader of China, Xi Jinping, and governments of the United States and other countries that are at odds with Russia. Yulia Navalnaya, the widow of the opposition leader Aleksei Navalny, who died in a Russian prison last month, said on social media, “All those involved in this crime must be found and brought to…
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