Two young men have died as a result of a one car collision on the Victoria Road, between Newbuildings and Magheramason in the early hours of today.
Another two people are also in a stable condition in hospital following the collision.
This morning the Victoria Road remains closed and diversions are in place.
A PSNI spokesman said the ages of the two young men are unknown at this stage.
Police are appealing for anyone who was travelling on the Victoria Road between 3am and 03.30am to come forward.