Steve Jaramillo, the driver of a Ford F150, was taken into custody following the crash near Alma Drive and Cross Bend Road. Additional charges will be considered once the investigation is complete, according to the Plano Police Department.

Officers and Plano Fire-Rescue crews responded to the scene after reports of a serious injury crash involving two vehicles. Police said alcohol and speed are believed to be contributing factors.

According to a preliminary investigation, a Toyota RAV4 was traveling northbound on Alma Drive and attempted a left turn onto westbound Cross Bend Road on a flashing yellow light. As it turned, the right side of the RAV4 was struck by the southbound F150, which police say was traveling at a high rate of speed.

The impact overturned the RAV4, which came to rest on its right side. Both vehicles also struck a traffic signal pole and a tree on the southwest corner of the intersection.

When officers arrived, they found two people unconscious inside the RAV4. Fire crews extricated the victims and attempted life-saving measures, but both were pronounced dead at the scene. Their names have not been released.

The crash remains under investigation by the Plano Police Traffic Unit. Authorities have not said whether Jaramillo has an attorney or whether he remains in custody.

The deaths add to a grim tally of traffic fatalities in North Texas and renew questions about how quickly and consistently impaired-driving cases move through the courts. Plano police have repeatedly urged drivers to arrange sober rides and to slow down, particularly at intersections where flashing yellow signals require turning drivers to yield to oncoming traffic.

Anyone with information about the crash is asked to contact the Plano Police Department.