Tesla continues to struggle with fires at its electric vehicle plant in Fremont, California, according to correspondence reviewed by CNBC on Monday.
Tesla CEO and chairman Elon Musk sent an email to employees on Monday morning explaining that the factory had to stop their "body production line" for several hours on Sunday night due to a "small fire." On this part of the line, a car body's sheet metal has been welded together but the body has not yet been painted.
Musk expressed relief that nobody was near the point of ignition when it happened, and no equipment was significantly damaged during the fire. He also suggested that employees look out for negligence or sabotage, writing "Please be on the alert for anything that's not in the best interests of our company" and reminding employees of former Intel CEO Andy Grove's famous maxim: "only the paranoid survive."