DALLAS (CBSDFW.COM) – At least one person is dead after an 18-wheeler smashed through a barrier wall on LBJ Freeway in Dallas Friday morning, police say.

The crash happened at around 10 a.m. near Plano Road. The 18-wheeler could be seen on top of the barrier between the east and westbound lanes of the freeway.

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Police said at least one person was killed in the crash but it is currently unknown if it was the driver of the 18-wheeler or someone in another vehicle.

(Credit: CBS 11 News)

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Dallas Fire-Rescue said the driver of the 18-wheeler was taken to the hospital but their condition was not known.

Traffic is currently being delayed as crews continue to clean up and investigate the crash.

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This is a developing story and will be updated.