NEW : Smoke rose from one , drifting up into the low clouds . A total of 95 vehicles were involved in 17 `` chain-reaction '' crashes . The first crash occurred at about 1:45 a.m. on the southbound side of I-5 near the exit for Highway 99 and was reported to be a minor collision involving two vehicles. The series of crashes started as fog engulfed Interstate 77 , police say .
NEW : A total of 95 vehicles were involved in 17 `` chain-reaction '' crashes . The first crash occurred at about 1:45 a.m. on the southbound side of I-5 near the exit for Highway 99 and was reported to be a minor collision involving two vehicles. The series of crashes started as fog engulfed Interstate 77 , police say .