UPDATE 7:00 a.m. Feb. 10
A mother and child are recovering after being injured in a crash on I-40 on Friday.
Knoxville Police Department released new information about the accident on Saturday morning.
Police say its investigation indicates a Nissan SUV struck a BMW SUV, which resulted in the Nissan then getting struck by a BMW sedan and another vehicle.
Police say the driver of the BMW sedan and her 3-year-old son were both inured and transported to UT Medical Center.
Due to the condition of the child, a reconstruction team was requested to begin an investigation which is continuing.
PREVIOUS STORY Feb. 9
All lanes are back on open I-40 east at the Papermill Road exit after a crash had it blocked for hours.
According to KPD, the interstate was shut down between West Hills and Papermill for a serious injury crash.
Traffic was at a standstill and cars were backed up as far as Cedar Bluff Road.
TDOT said while all lanes are reopened, traffic remains backed up.
Drivers have been going the wrong way down the on-ramp to avoid the crash but KPD is urging drivers NOT to do this.