Posted
Ed. note: At the time of publication, the LA station was reporting four injuries. The site was streaming live helicopter video at 7:30 p.m. local time. What I saw was that the front bogie of the first car had derailed, and the car was loaded. Workers were securing the train's position with chains between the second bogie and the track. I saw the four people in the first car having a laugh about something as the workers were climbing above the track. It was difficult to see if the entire train was loaded, but I make the assumption that they would not attempt to evacuate the train without its position secured. -Jeff
Read more and possibly see video from KNBC/Los Angeles.
UPDATE: 7/9/14 More details of the derailment, caused by a fallen tree, from The LA Times.