A man and a woman were killed Saturday night in a car crash in the Great Falls area of Fairfax County, the police said. They said a "juvenile female" was taken to a hospital with life-threatening injuries.

The crash occurred in the 10500 block of Beach Mill Road, the police said.

No names or ages were released. No cause for the crash was given.

The site is about three miles north of Leesburg Pike, and about two miles south of the Potomac River.