On May 23, 2017 at 1.50 PM, report on fire in the ‘Kalkan’ police cadet school, which is located in the city of Naberezhnye Chelny, was received via ‘Strelets-Monitoring’ software and hardware complex system. Fire departments arrived to the scene in 5 minutes. There was found short circuit in one of rooms on the 3rd floor. According to the evacuation plan, the school personnel led out the students.