On Friday, June 5, at approximately 11:09 a.m., Calvert Advanced Life Support units responded to an upgraded Area Box assignment for reports of smoke inside a residence. Chief 10B responded on the initial response to support fire department units. Upon arrival, Chief 10B assisted with establishing a rehabilitation area for responders and provided medical standby throughout the incident. Fire and emergency medical units from both Calvert and St. Mary’s counties participated in the response.