Desert Hot Springs police officers discovered a marijuana grow house operation after a small fire at the residence Tuesday morning. Firefighters responded to calls of a structure fire at a residence in the 65300 block of Osprey Lane at around 5:45 a.m. According to Cal Fire, firefighters discovered smoke from an electrical panel and quickly contained it. After further investigation by DHS police officers, the cause of the fire appeared to be as a result of faulty electrical wiring which was connected to an illegal marijuana grow located inside the residence.