Authorities say two women from Texas are dead after they were hit by a tractor-trailer while changing a tire on I-70 near Limon.

Sgt. Mike Baker with the Colorado State Patrol says the semi registered in Louisiana was towing a loaded horse trailer when it struck the women at about 6:30 am Saturday. One of the victims was pronounced dead at the scene, and the other died at a hospital.

Killed in the crash were Shun Jones, 48, and Amanda Omo-Iyamu, 38.

Baker says troopers are investigating if the vehicle that had stopped on the highway was still on the roadway or was on the shoulder.

The truck was occupied by Michel Martin, 37, and Tristan Martin, 16, both of Sulphur, Louisiana. Neither was injured during the crash.

Prior to the arrival of law enforcement officers, Tristan was transported from the scene by a private party. When law enforcement officers arrived, Michel reported that he had been driving the semi at the time of the crash. Upon further investigation, Tristan was determined to have been the driver and he later surrendered to law enforcement.

Tristan was charged with two counts of Failing to Remain at the Scene After an Accident Involving Death and two counts of Careless Driving Caused Death. Michel was charged with one count of false reporting. Both were booked into Lincoln County Jail.

Alcohol and drugs are not considered contributing factors in the crash.