A knife attack at a shopping mall in Russia has left one person dead and multiple others injured. The assailant, a 19-year-old male, was apprehended after a bystander intervened before law enforcement arrived. Authorities have stated they are requesting a psychiatric evaluation of the suspect. The Investigative Committee is currently leading the investigation into the incident. Details regarding the motive behind the attack remain unclear at this time. The number of injured has not been officially released, but reports indicate several individuals required medical attention. The attack prompted a swift response from emergency services and a lockdown of the shopping center.