Calls to 9-1-1 were made just after 2 PM today for smoke and flames coming from a trailer on West Delano Street near Oracle/Miracle Mile. Crews arrived to find a fully involved trailer. No one was in the trailer but three persons had evacuated from it, with one having to be helped from it by neighbors/those on scene before fire crews arrived. They were transported to the hospital as a precaution. Fire was under control twelve minutes after TFD FFs arrived. Cause/origin is under investigation. No