Officials said a truck was stopped around 2am in a lane on Interstate 45 southbound at the I-10 interchange. The driver was passed out, possibly intoxicated, authorities said.
A car, also driven by an alleged intoxicated motorist, slammed into the back of the truck.
The accident caused I-45 southbound to be completely shut down for a short time.
The driver of the truck was uninjured and arrested at the scene. The driver of the striking car was transported with several lacerations, officials said. Charges are pending.