A suspect is in custody following an hour-long chase that left police officer injured.
Authorities say the chase started about 4:00 p.m. Monday in Potosi after the suspect took off during a traffic stop.
The suspect stopped briefly for a DeSoto Police officer, but then rammed the police cruiser, causing it to strike the officer.
"The subject stopped outside Potosi, the officer exited his car and then the subject went in reverse. He then hit the officers car." said Sgt. Kevin Miller of the Missouri State Highway Patrol.
It's not clear how serious the officer's injuries are.
The chase ended about 5:00 p.m. at Telegraph and Tenbrook in Arnold. The Missouri Highway Patrol says the man got out of the vehicle and surrendered.
The Missouri Highway Patrol reports that Chief Rick Knight was injured in a crash along Highway 47 Washington County around 4:15 Monday afternoon. Knight's truck rolled over, and he was partially ejected.
Fire department officials say the 51 year old was trapped and had to be pried from the truck.
Chief Knight was taken to St. Anthony's Medical Center in south St. Louis County by ambulance because weather conditions made it unsafe to use a medical helicopter.
His injuries are described as serious, including broken bones.