The P.S.N.I. and other members of the emergency services are currently at the scene of two separate road traffic collisions on a busy Northern Ireland road.
The two separate collisions occurred on the Glenshane Road between Drumahoe and Claudy, County Londonderry.
Delays are expected.
The P.S.N.I. is advising motorists to seek alternative routes where possible.
There are no further details at this time.