MANISTEE COUNTY, Mich. (AP) - A Michigan construction worker was killed and another injured when they were struck by a car in a construction zone on U.S. 31 in Manistee County. The incident occurred Tuesday afternoon in the Village of Bear Lake. Manistee County sheriff's deputies say a 20-year-old worker of Pentwater was standing off road with a 23-year-old worker from Ludington when the car struck them. The 20-year-old was killed. According to authorities, witnesses said the vehicle was traveling at a high speed when it crossed the center line, left the road and struck the workers. The 23-year-old victim was flown to Munson Medical Center in Traverse City and was last known to be in critical condition. Authorities say the 66-year-old driver, a Bear Lake woman, was not injured. She was not taken into custody pending further investigation into the crash.