Disclosed are various embodiments related to coordinated monitoring and responding to an emergency situation at a building structure as a supplement to a traditional emergency response. In some embodiments, a system comprises a computing device that is configured to receive sensor data from a sensor network. The sensor network includes monitoring units that monitor various locations of an infrastructure. The computing device determines an occurrence of an emergency event at a location in the infrastructure using an anomaly detector model based at least in part on the sensor data. A hybrid mobile unit is instructed by the computing device to navigate to the location of the emergency event. The hybrid mobile unit is configured to provide mobile sensor data associated with the location to confirm the emergency event.