Woman killed in single-car crash in Jersey City

A woman was killed in a single-car crash early Saturday morning in Jersey City. 
The accident happened around 3 a.m. Saturday morning beneath the Hudson extension of the New Jersey Turnpike on Newark Avenue and Seventh Street.
Despite the scene being cleared, the Hudson County Prosecutor's Office say there is an active investigation into what occurred. 
It's not yet known if the unnamed woman was the driver or a passenger in the four-door sedan. The vehicle did have heavy damage to its driver's side when it was taken away from the scene.