i want to go to sergeant laura clay here. you tell us what happened here this morning? >> well, about 5:30 this morning a big rig driver discovered he had a flat tire. as he moved and exited the vehicle he noticed a lot of smoke and then saw the flames. we're not sure what caused the fire. and it became fully engulfed quickly. >> we understand that the driver is doing okay. in terms of what was inside. do we know? >> just groceries, nothing toxic. just making a delivery to the store. >> and we'll be out here the better part beginning to end 4 to 5 hours. >> thank you very much for that. >> traffic is moving at a snail's pace. and off the bay bridge. and sal. >> we have pictures by the way that viewers sent us when it was on friday. these are sent in by the viewer who happened to take the pictures and you can see and a huge fire at no time. and then it was a huge fire and just contained. >> it will be a long time and clear because of this being off the bridge. if you are in the car pool lane it will not be that good for you. t