Assistant Chief Constable Chris Todd said: “We are aware that a poster claiming to contain details of three serving officers was placed near a bus shelter on Chapel Road in Dungiven last night, Thursday 31 August.
“This was a clear attempt to intimidate police officers, staff and their families but police can confirm that the information contained on the poster is incorrect.
“We have commenced an investigation into this matter and I appeal to anyone with any information relating to this incident to contact police on 101. We are particularly keen to hear from anyone who was travelling through Dungiven last night and who has any dash cam footage.”