Dallas, TX : Four people dead in fiery wreck on Dallas overpass involving tractor-trailer, another vehicle early Monday morning, Oct 5, 2015

Authorities say four people have died in a fiery wreck on a Dallas overpass after their vehicle became entangled with a tractor-trailer carrying lumber.

Dallas County Sheriff's Department spokesman Raul Reyna said they are still investigating what caused the wreck early Monday morning. He said two adults, including a pregnant woman, and two children died in the vehicle that became entangled with the tractor-trailer. He says the driver of the tractor-trailer was unharmed.

Reyna says that when the vehicles became entangled, the gas tanks on the tractor-trailer ruptured, causing the large fire. Burning lumber fell from the overpass onto the ground below.

The accident happened on the bridge from westbound Interstate 20 to southbound Interstate 35.

Source:

4 dead in fiery wreck on Dallas overpass involving tractor-trailer, another vehicle