A Congers woman was killed in a one-car crash in Clarkstown on Sunday afternoon. Clarkstown police say the accident took place on Congers Road near Conrad Lane in New City around 12:30. The Jeep Grand Cherokee struck a tree. The driver, 71 year-old Rosanne Firenze, was found unconscious. Police removed her from the car and performed CPR. New City Ambulance and Rockland Paramedics took over and brought her to Montefiore Nyack Hospital where she was pronounced dead. No word yet on what caused the crash.