UPDATE: A Tennessee trooper shot and wounded a man who authorities say shot at him from inside a pickup truck believed to be stolen.

News outlets cite a release from the Tennessee Bureau of Investigation that says a Tennessee Highway Patrol trooper approached a pickup truck stopped along an interstate ramp early Friday morning. Kenneth C. Powell of Kingsport told the trooper the truck was out of gas.

The TBI says the trooper ran the truck's plates and noticed it had been reported stolen. Authorities say Powell tried to pull away and then began shooting at the trooper when he approached again. The trooper returned fire, hitting the 25-year-old, who was hospitalized in unknown condition.

The trooper was unharmed.

An investigation is ongoing.

PREVIOUS STORY: The Tennessee Bureau of Investigation has sent agents to a reported officer-involved shooting in Greene County.

According to the TBI, the shooting happened along southbound I-81 near exit 23 early Friday morning.

At the moment, no other details have been released. The TBI has sent a public information officer and said it will provide updates as soon as they become available.

WRCB's Bristol sister station News 5 WCYB has crews en route to the scene of the shooting, saying the shooting reportedly occurred sometime before 5 a.m.