SISTERS, OR -- Two Sisters High School students were among the three people killed Thursday night when the SUV they were in crashed on a forest service road, according to the Deschutes County Sheriff’s Office. Sgt. William Bailey said deputies were dispatched around 9:15 to the crash at USFS Road 15, one mile south of Highway 242. Deputies determined a 2008 Mercedes SUV was heading north on the forest service road when for some reason it left the road and hit a large tree, ejecting two of the three people inside. Bailey said two 17-year-old girls from Sisters were killed as well as an 18-year-old from California.