A method of identifying one or more individuals with increased body temperature in a group of individuals, the method comprising the steps of: providing a scene (50), comprising one or more individuals, acquiring a plurality of successive sets of images of the scene (60), a set comprising a visual image and a thermal image, wherein in a set of images a content of the thermal image corresponds to a content of the visual image, detecting a feature of at least one of the individuals in at least one of the visual images (70), tracking at least one of the individuals based on the detected feature in the respective visual images of at least two of the sets of images (80), selecting a subset of the sets of images (100), using the feature in determining a measured temperature associated with the individual based on at least one of the thermal images of the subset (110), if the measured temperature exceeds a threshold value, providing an alarm (120), wherein providing the alarm comprises indicating the individual(s) associated with the alarm (130).
