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The Deschutes County Sheriff’s Office on Wednesday identified the two Sisters High School students who were killed Oct. 1 in a car crash west of Sisters.

Geneva Tallman and Hannelore “Lala” Debari, both 17-year-old Sisters residents, were in a 2008 Mercedes SUV with 18-year-old Amélie Malerba Locke, of Sebastopol, California, when the SUV veered off Forest Road 15 and into a tree, according to the sheriff’s office.

The three teenagers were pronounced dead at the scene.

Deputies responded at about 9:17 p.m. and found the crashed SUV off the roadway, about a mile south of state Highway 242.

An initial investigation found the SUV was traveling north on the Forest Service road and struck a tree, ejecting two of the three occupants. The sheriff’s office believes speed was a contributing factor.

The investigation has not yet determined who was driving and if the three occupants were wearing seat belts.