Provided is a control device including a location information reception unit which receives, via a communication device, location information of a user terminal from the terminal in a wireless communication area, a detection device control unit which controls a detection device of a flying object to detect a state of a region including a location indicated by the location information, a detection information reception unit which receives, via the communication device, detection information indicating the state, an unmanned aerial vehicle control unit which controls an unmanned aerial vehicle to capture an image around the location by an image capturing unit of the vehicle based on the detection information, a captured image reception unit which receives a captured image captured by the image capturing unit from the vehicle, and a rescue method decision unit which decides a rescue method of rescuing a user of the terminal based on the image.