decide the duration of the evacuation orders, and firefighters say when they responded to the scene, they discovered a semi trailer engulfed in flames. it was fully loaded with unknown type of plastics. fire spread from the semi trailer to other piles of plastics that were around the trailer. we only have one access into the where the fire was. all the other access roads were blocked by piles of plastic and other semi trailers. so we do have a crew on the way to that scene, and we re going to they re going to bring you live report from there soon, but officials say that the cause of the fire likely won t be known until it is extinguished. but they say the fire could burn for days. and we re going to be live on the ground in richmond just a little bit later on on cnn this morning, and while we wait for new developments and that we re also tracking new body cam video that came out of louisville overnight louisville police officers as they rushed in to stop the mass shooter at the bank. t