A 62 year old man has been arrested following the death of a woman at a house on Glenshane Road in Claudy.
The 36 year old's death was reported to police at around 4.30am this morning.
Detectives say the death is unexplained and is being treated as suspicious at present. A post mortem examination will be required to establish the cause of death.
Anyone with any information they believe could be relevant or helpful in this investigation can contact detectives at Maydown via the non-emergency number 101.