Three people were injured in a head-on collision in New London Thursday night. The accident happened on Highway 45, south of Highway 54. Officials say a 40-year old Michigan man was attempting to pass another vehicle, and crashed into a northbound vehicle. The Michigan man was transported for non-life threatening injuries. The driver of the other vehicle, a 61- year old Marion woman, was flown to a nearby hospital with possible life-threatening injuries. A passenger, a 62-year old Marion man was transported by ambulance for minor injuries. One other passenger in the vehicle was not injured. The portion of the highway was shut down for about 4 hours on Thursday.