Firefighters respond to Santa Ana structure fire behind lumber yard

Fire crews battle flames in a building in back of a Santa Ana lumber yard. (Photo by Brentt Sporn/OnScene.tv)Fire crews responded to a second alarm fire at the 2700 block of South Main Street on Thursday afternoon in Santa Ana, officials said. When firefighters arrived around 6:30 p.m., there was a “well-involved” fire of a…