The Cowlitz County Sheriff’s Office reports that a 15 year-old girl is dead, while her 18 year-old sister suffered serious injuries after being hit by a vehicle while they were walking along Bond Road near Castle Rock. Chief Criminal Deputy Charlie Rosenzweig says that the two young women were hit at about 10 pm, as they were walking in the 400 block of Bond Road. Details on the collision and the names of those involved haven’t been released as of yet, but Rosenzweig says that the male driver of the vehicle is cooperating. That driver is also submitting to requests for samples to be tested for possible intoxicants. Detectives have been called in to continue the investigation, and additional details should be released later today.