Jesse Cundiff was in the office of the Pennzoil oil service station on Outer Loop on Tuesday afternoon when he saw a Louisville Metro Police car zoom past.
The lights and sirens were on, Cundiff said, but that didn't stop a pick-up truck from turning onto Outer Loop from Smyrna Road - right into the direction of the police car.
The police car swerved to miss the truck, spun and crash head-on into a house on the 6300 block of Outer Loop.
The officer - who has not yet been identified - was transported to University Hospital with injuries, but they were not life-threatening, said Officer Carey Klain, a police spokeswoman.
The accident was reported to authorities at 1:05 p.m. Tuesday, said a MetroSafe supervisor.
The truck Cundiff saw- a gold-colored Dodge - did not stop and kept driving west on Outer Loop, Cundiff said.
The LMPD car crashed into the front door of the single-story house, crumbling the brick facade one side.
Two or three people were inside the house when the crash happened, said Sgt. Barry Denton of the Louisville Metro Police Traffic Unit.
They got out through a front window, Cundiff said.
No one inside the house was injured, Denton said.
The Red Cross is helping the family with shelter, said Alicia Smiley, a police spokeswoman.
The officer was from LMPD's Seventh Division, Smiley said.
The officer was responding to a call for service, but Denton didn't know specifics of the run.
Scott Chase, a next-door neighbor to the house were the crash happened, said he was watching television in his home when he heard a boom.
"He was coherent," Chase said. "He said he was OK."
Emergency crews soon arrived and firefighters pried the door open and helped the officer out of the car, Chase said.
Cundiff has worked at the Pennzoil station for several years and police cars speeding by with emergency lights and sirens are common, though Cundiff said this police car seemed to be driving faster than usual.
Police are investigating and interviewing witnesses, Denton said.