DALLAS (August 21, 2012)--A fiery seven-vehicle wreck early Tuesday on southbound Interstate 35 in Dallas left two people dead.
The Dallas County Sheriff's Office said three other people were hurt in the accident Tuesday morning.
Investigators believe the chain-reaction crash started after one car hit a barrier and then collided with another car, sending the second vehicle into an 18-wheeler.
Two people in the first vehicle were killed.
Several other vehicles then piled into the accident scene.
Authorities are trying to determine what caused the accidents and whether racing was involved.
The names of the victims were not immediately released.
Traffic was diverted during cleanup of the accident scene.