PICTURED: Four of six victims killed in the 133-car pile-up caused by Winter Storm Shirley after a FedEx truck plowed into a barrier when the driver lost control on an icy downhill stretch on a Texas freeway
Six people were confirmed dead following a 133 car pile up on Interstate 35 in Fort Worth, Texas, Thursday
The victims have been identified as 34-year-old Tiffany Gerred, Aaron Watson, 45, Michael Wells, 47, Christopher Vardy, 49, William Williams, 54, and 46-year-old Tamara Mendoza Querales
Officials say 65 people were treated for injuries, including 36 who were rushed to local hospitals
The crash occurred around 6am on Thursday, with video showing a FedEx truck sliding into a barrier before causing trailing cars to slam into one another