A Carthage woman was one of two people who died early Wednesday in a DeSoto Parish crash, the Louisiana State Police said.

Police said Julia Patton, 27, of Carthage and Jaylie Gray, 18, of Galveston died from the wreck.

State troopers responded around 4:45 a.m. Wednesday to a two-vehicle crash on Louisiana 765 near Marshall Road in DeSoto Parish.

A preliminary investigation showed a tractor-trailer had been stopped in the northbound lane while it waited to make a right turn. Police said an SUV driven by Patton was also traveling northbound, failed to stop for an unknown reason and struck the trailer’s rear bumper.

Both Patton and Gray were unrestrained and suffered fatal injuries, police said. A third passenger had serious injuries and was taken to a local hospital, police said. The driver of the tractor-trailer was not injured.

Police said toxicology samples have been submitted for analysis and the crash remains under investigation.

“Buckling up is the most effective way to protect yourself during a vehicle crash,” police said. “Failure to take a few seconds to buckle up can have devastating consequences. Louisiana law requires every person in a vehicle, regardless of seating position, to be properly restrained day or night.”