Cause of four-car pileup on I-5 in Thurston County is under investigation

Cause of four-car pileup on I-5 in Thurston County is under investigation

Washington State Patrol is investigating the cause of a four-car pileup that blocked the left two lanes of northbound Interstate 5 in Thurston County for an hour on Thursday.  One driver, a 71-year-old man from Gresham, Oregon, who was not wearing a seat belt at the time of the crash, was injured. He was transported to Providence St. Peter Hospital in Olympia for medical treatment.  No other injuries were reported.  The 71-year-old man, identifi…