A tragic attack occurred at a concert hall in Moscow, where assailants opened fire on the crowd, resulting in over 60 deaths and more than 100 injuries. The Islamic State group claimed responsibility for the attack, with the U.S. intelligence community confirming the group's involvement. The incident took place shortly after President Vladimir Putin's re-election, adding to the shock and tragedy. The attackers, armed with assault rifles, stormed the venue during a performance, setting it ablaze with explosives. Panic ensued among concertgoers as they tried to flee the chaos. Guards at the hall were reportedly unarmed, contributing to the initial vulnerability.

Authorities are investigating the incident, tightening security across the country, and exploring potential motives, including accusations against Ukraine. The attack drew condemnation and expressions of solidarity from around the world, with heightened security measures being implemented in response.