In some implementations, a system can transmit communications indicating an occurrence of a particular type of safety incident experienced by a user. Registration information that indicates that a plurality of safety devices of different types are to be registered with the user is initially obtained. Sensor data from the plurality of safety devices of different types are obtained. An occurrence of a particular type of safety incident experienced by the user is then selected from among a plurality of types of safety incidents. The selection may be based at least on the obtained sensor data and the obtained registration information. A communication is then provided to another user to indicate the occurrence of the particular type of safety incident experienced by the user in response to selecting the occurrence of the particular type of safety incident.