it is a sea of soaked and burned cardboard, creating apock limitic view. nearby, planes could be seen flying through the smoke. the work for firefighters will go on, possibly for days. digging in with heavy equipment is that putting water on the hot spots. >> we're trying to find the hottest parts and we'll just continue. >> reporter: firefighters are on the scene and they're looking to see if there are any surveillance cameras in the area so they can determine the exact cause of this fire. matt keller, abc7 news. >>> two men facing charges for the deadly ghost ship fire delayed pleas today. both face 36 counts of involuntary manslaughter. one for each victim. both remain in jail tonight. prosecutors believe they were negligent for several reasons including storing chemicals inside the warehouse. but the defense lawyers say it was someone else's fault. >> there is potential arson in this case. there's no poe financial it started because of pg & e. not even in my clients' premises. >> they will enter pleas next month. >>> we are tracking a return of showers