KILLIAN - Authorities say speed and impairment are suspected factors in a deadly Livingston Parish crash.

Shortly after 11 p.m. Thursday, troopers began investigating a single vehicle crash on LA 44 west of LA 22. The crash claimed the life of 19-year-old Megan Shoeman.

The initial investigation revealed that the crash happened as Shoeman was driving a 2014 Mazda 3 eastbound at a high rate of speed. For reasons still under investigation, the Mazda ran off the roadway to the left and hit a tree.

The vehicle then flipped and ultimately overturned.

Although Shoeman was wearing a seatbelt at the time of the crash, she was partially ejected from the vehicle. Shoeman was pronounced dead at the scene.

A passenger in the vehicle at the time of the crash was properly restrained and was transported to a local hospital with moderate injuries.

Impairment is suspected on the part of Shoeman. Authorities say a toxicology sample was obtained from her and submitted for analysis.

This crash remains under investigation.