On October 9, fire investigator Cal Fire said that PG&E’s (PCG) sagging power lines and heavy winds started the Cascade fire in October 2017. However, Cal Fire mentioned that it didn’t find any violations of the Public Resources Code. The Cascade fire in Yuba County destroyed 264 structures and claimed four lives. Cal Fire already said that PG&E was responsible for 16 other fires in 2017. The cause of the Tubbs fire, the most devastating fire, is still under investigation.