The collision analyst is currently on scene again today to obtain more information and photos while in daylight.
The timeframe of the closure is unclear, but not expected to be for a long period of time, according to RCMP.
One person is dead and two others were sent to hospital after the accident around 5:30 p.m. Monday evening about six km east of Clarenville.
Initial investigation has found that two vehicles collided head on in the eastbound lane. A third eastbound vehicle was unable to avoid the westbound car after the collision.
Traffic is being rerouted through Deep Bight during the closure.