The Sierra Trading Post Fulfillment Center was evacuated Monday morning following a fire on the building’s east side. Cheyenne Fire and Rescue was dispatched to the scene at 10:07 a.m. and arrived at 10:15 a.m. to see the building had already been evacuated, according to a news release. Firefighters encountered “dense smoke” when they got inside and were able to locate the fire in the eastern portion of the building. They had it under control by 10:40 a.m. but were still on scene at 3 p.m. No injuries were reported, and Scott Smith, Fire and Rescue public information officer, said the building’s sprinkler system likely kept the fire at bay in the Fulfillment Center, where orders are often stored. Officials are still working to identify the cause of the fire and assess damage.