According to authorities, HPD officers were responding to a crash on the freeway near 610 West Loop when a driver crashed into the scene and hit an HPD vehicle at about 5 a.m.
Police said the officer was not inside the vehicle when the crash happened and was not injured.
Houston TranStar images show the HPD vehicle on the freeway with its airbags deployed.
Authorities have not revealed if anyone else was injured.
The freeway reopened around 7:30 a.m.