COMMERCE CITY -- A firefighter with the South Adams County Fire Department advances a hose line on a fire Sunday afternoon. The fire department was dispatched to a building fire, with reports of explosions, in the area of Chambers Road and East 112th Avenue in northern Commerce City. While the fire appears to have started on the building's exterior, there was moderate damage caused to the interior. Brighton Fire Rescue District, the Northglenn Ambulance Service and Adams County Sheriff assisted. There were no reported injuries. The fire remained under investigation Sunday.