(NECN) - A single vehicle crash on Route 1 South in Wrentham has yielded two fatalities and one serious injury. A preliminary investigation by State Police indicates an adult female was operating a 2007 Pontiac G5 on Route 1 South in the vicinity of Myrtle Street when she lost control of her vehicle, exited the road to the right and crashed head-on into a tree. Both the operator and and an adult female in the front seat suffered fatal injuries. The adult female seated in the rear of the car was taken by medical helicopter to Beth Israel Hospital in Boston. The identity of all victims is being withheld pending proper family notification. The crash remains under investigation. Route 1 South remains closed at this time.