. >> aaron pesk won raps the area helped to be nearby. >> he helped load one of the individuals into thence ambulance. >> many of them were bleeding and bloods all over the sidewalk. kind of a pretty horrific scene. >> police are intercrews this with enas it was happening. >> vic lee, abcpy in. >> people saw it for miles and happened at the diehl wreck iin park and that's where laura anthony is live with us. >> reporter: hi, dan. it took a lot of matter and noam to put out this fire. once it was out, fire investigators say more than 220 cars burned. that's about a quarter of the lot. the cause still under investigation. the thick black smoke could be seen for miles and. flames were as high as the hoses on the ladder tracks trying to and neighbors -- i was sitting in the drive when i heard like a big explosion and i got out of my car and i saw billowing black smoke and i was very startled. >> about you have vehicles in approximate imrite of. teams why contra costa county haz-mat and fish and wildlife and the u.s. environmental protection agency were all on scene to afess the aftermyrt