Arcata Unknown Type Fire w/ Burn Injuries: This was originally dispatched a possible structure fire with multiple RP’s reporting fire visible from Samoa Blvd along the railroad tracks. Arcata Fire is now on scene at O Street and Tenth Street with a patient with extremely severe burn injuries. An ambulance is responding code 3 to their location. They are now requesting a second code 3 ambulance for another possible patient. The fire appears further south towards Samoa but it is still unclear what is on fire and what the cause was.; Already dispatched and responding are Arcata Fire all call, Blue Lake Fire, Samoa Fire, Humboldt Bay Fire and Arcata Ambulance. An Arcata Fire unit at scene has assumed “Samoa IC”