RISCO -- The investigation into the death of a 21-year-old woman who was struck by a car continues.
Twylia Walls of Lilbourn was struck by a vehicle at 2:10 a.m. May 15 on Highway 62, two miles west of Risco, according to a report from the New Madrid County Sheriff's Department.
While authorities were not commenting on the death, according to relatives she had been involved in an argument earlier in the evening and had gotten out of the vehicle prior to being struck.
An autopsy was conducted Friday in Farmington.
The Missouri Highway Patrol and the New Madrid County Sheriff's Department are investigating the death as "traffic-related."