CLARION, Pa.—The body of a missing 19-year-old woman has been found in northwestern Pennsylvania.

State police say that Devan Knapp's body was found inside her car at about 7 a.m. Tuesday on a road outside Clarion. That's about 80 miles northeast of Pittsburgh.

Knapp, of nearby Brookville, had not been seen since last Friday. She was reportedly found in the new car she had purchased the day she disappeared.

Authorities say the death is under investigation and an autopsy has been ordered.