Apartment Building, Residential Sun Valley, NV – Sprinklers control multiple arson fires at apartment complex January 8, 2015 viking210 The Sparks Fire Department says fires at a Sun Valley apartment complex were intentionally set. The fires started around 1:30 a.m. Wednesday at the Boulder Creek Apartments. Crews found that the internal fire sprinkler system had extinguished two fires in two separate areas of the unit. A third fire was noticed in another room but had self-extinguished. The call was reported to Sparks dispatch by the fire alarm monitoring company as water flow. Fire crews found smoke coming out of the open entry door of one of the apartment units. Firefighters found no one inside. Sparks Fire says several people were evacuated, but have been allowed back into their units. There were no reports of injuries.