Dallas, TX- Two people were injured, and an elderly Trophy Club couple was killed Tuesday when a dump truck lost control on LBJ Freeway and landed on top of their vehicle.

Just after 10 a.m. on the heavily congested freeway, a dump truck stuck a Toyota sedan with two passengers. The truck them crossed over the center median of the freeway and landed on top of a Lexus sedan driven by an Trophy Club couple, the Dallas News reported.

When emergency crews arrived, they say that the front end of the dump truck was resting on the Lexus and the rear end was on top of the Toyota.

Despite their Toyota being totaled, the two passengers escaped the accident with moderate non-life threatening injuries.

The couple in the Lexus, however, was not as lucky, both passengers were pronounced dead on the scene. The Dallas coroner’s office identified the couple as Tarleton Mullikin, 83, and Benna Mullikin, 81, according to the Dallas News.

“Our firefighters reported when they got here that … there was a white car underneath the front of the dump truck and pretty much the entire front end of the dump truck was inside of the car,” Dallas Fire-Rescue spokesman Jason Evans told WFAA.

The driver of the dump truck was also injured, but his condition is unknown.

Police are unclear what caused the dump truck to jump the center concrete barrier and their investigation is ongoing, but police later said the driver could face a charge of criminally negligent homicide.

The husband of a witness to the accident told the Dallas News that his wife suddenly saw a cloud of smoke, which they assumed came from the truck as the driver slammed on the brakes. She then saw the truck “slide over one car” and cross over the concrete median into the eastbound lanes on top of the Lexus.

Investigators discovered that the truck belonged to a subcontractor, Rizo Trucking, who was among the extensive crew working on the LBJ Express project. According to the Federal Motor Carrier Safety Administration, Rizo trucking has not had any accidents in the past two years.

A spokesman from the LBJ Express project said the dump truck driver was possibly trying to avoid a disabled car in the moments before the crash.

The accident tied up the LBJ freeway for several hours following the devastating crash.

In addition, to the injuries, the dump truck leaked a “significant amount” of diesel fuel onto the roadway and Hazmat crews had to be called in to clean up the mess.

This is the third fatal dump truck accident we have reported over the past week and a half. Last Tuesday in North Carolina, two people were killed in separate accidents in McDowell County. One man was run over by a dump truck at construction site and another man was killed when a large boulder fell from the back of a dump truck and crashed into the car of an elderly motorist.

If you need to speak with a personal injury lawyer in Dallas, visit www.stovalllaw.com.