Russia says 60 dead, 145 injured in concert hall raid; Islamic State group claims responsibility

MOSCOW (AP) — Assailants burst into a large concert hall in Moscow on Friday and sprayed the crowd with gunfire, killing over 60 people, injuring more than 100 and setting fire to the venue in a brazen attack just days after President Vladimir Putin cemented his grip on power in a highly orchestrated electoral landslide.

The Islamic State group claimed responsibility for the attack in a statement posted on affiliated channels on social media. A U.S. intelligence official told The Associated Press that U.S. intelligence agencies had learned the group's branch in Afghanistan was planning an attack in Moscow and shared the information with Russian officials.

It wasn't immediately clear what happened to the attackers after the raid, which state investigators were investigating as terrorism.

The attack, which left the concert hall in flames with a collapsing roof, was the deadliest in Russia in years and came as the country's war in Ukraine dragged into a third year. Moscow Mayor Sergei Sobyanin called the raid a "huge tragedy."

The Kremlin said Putin was informed minutes after the assailants burst into Crocus City Hall, a large music venue on Moscow's western edge that can accommodate 6,200 people.

The attack took place as crowds gathered for a performance by the Russian rock band Picnic. The Investigative Committee, the top state criminal investigation agency, reported early Saturday that more than 60 people were killed. Health authorities released a list of 145 injured — 115 of them hospitalized, including five children.

Some Russian news reports suggested more victims could have been trapped by the blaze that erupted after the assailants threw explosives.

Video showed the building on fire, with a huge cloud of smoke rising