Authorities say a 91-year-old woman was killed when her 78-year-old friend accidentally ran her over with a car after dropping her off at her home.

Florida Highway Patrol spokeswoman Kim Montes says Alice Bessmer was getting items out of the back seat of Ursula Schleider's car Wednesday when the car began rolling backward and knocked the woman to the ground.

Montes says Schleider pressed the accelerator to back up and ran over Bessmer.

Bessmer was pronounced dead at the scene.

Highway patrol detectives are investigating, and so far no charges have been filed.

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Information from: Orlando Sentinel, http://www.orlandosentinel.com/