The number "112" allows one to call several services at once to the scene — firefighters, rescuers, medical workers, traffic police, gas service specialists, etc., for example, if there is a major fire with victims....

Remain calm and speak clearly. Inform the operator about the problem, they will promptly send emergency services: fire protection, Ministry of Emergency Situations, the police, ambulance, emergency gas service, and other ones. Do not hang up, be ready to answer the operator's questions providing all the details...