Westbound lanes of Interstate 20 at mile marker 601 in Harrison County between Hallsville and Longview remain closed this morning as authorities continue to work a double-fatal multi-vehicle wreck.

According to a DPS preliminary crash report, a wreck in the westbound lanes of Interstate 20 in Harrison County had slowed traffic, including four stopped tractor-trailers. A fifth tractor-trailer failed to slow and slammed into the other vehicles.

The driver and passenger in the fifth tractor-trailer died at the scene.

Authorities are still working the crash scene and have closed the westbound lanes. Traffic is being re-routed near the 604 mile marker.