The topic of this paper is the marketing communication of the National Protection and Rescue Directorate. The National Protection and Rescue Directorate receives all calls for the occurrence of an extraordinary event, that is of a crisis through the unitary European emergency number 112. Since the capacity of accepting such calls is limited, it is necessary to do everything possible to optimize the number of calls to the unitary European emergency number 112. From the statistic of the received calls to the number 112, it is evident that a large proportion of them are ill-suited calls which indicates that a large number of citizens still does not know the purpose of the number 112 and their ill-suited calls are unnecessarily burdening the 112-emergency centres which receive calls on the unitary European emergency number. In some situations of extraordinary events it is also necessary to alert the population with the prescribed alarm signs. After the warning sing, it is required to inform the citizens of the event and give them instructions on how to protect human lives and material goods. The public announcement is given by the 112-emergency centre immediately after the alarm sign through electronic media. This paper deals with the literature on marketing, public marketing and marketing communication to explore the possibilities for a more effective communication of the National Protection and Rescue Directorate, in particular the marketing communication on the internet and on social networks. In order to gain insight into the unused potential for the improvement of the marketing communication, a survey on the habits and preferences of respondents when using social networks was conducted.