Demotte, Indiana – Southbound lanes of I-65 are shut down near Demotte due to a massive semi fire.

Indiana State Police said the lanes are closed at exit 230 for an unknown amount of time.

Video shows the burned-out husk of a semi-trailer truck still engulfed in flames on the roadway.

Police said a preliminary investigation found a mechanical failure on the tractor part of the truck caused a fire. The flames then spread to the trailer.

The trailer was hauling cans of a flammable material, but police did not specify the type.

The driver of the truck was not injured, police confirmed.

State police said that once it is safe, traffic will be escorted around the incident site. However, they warned it may not happen “for a while.”

Drivers were asked to be patient and not to drive on the opposite side of the road to escape the traffic jam.

Police said cleanup from the fire is expected to last well into the night because the pavement was significantly damaged.

As of 9:15 p.m., southbound I-65 remained closed indefinitely.

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