Assistant Chief Constable Chris Todd said: “Police are investigating the loss of an officer’s laptop and notebook.

"It is believed the material fell from a moving vehicle on the foreshore stretch of the M2 motorway, on Thursday 17th August around 4.15pm.

"The laptop was immediately deactivated and has been recovered.

"Sections of the notebook remain outstanding.

"Enquiries are underway to establish the contents of the notebook.

"We will be liaising with the Office of the Information Commissioner and have advised the Northern Ireland Policing Board and the Department of Justice.

"Anyone with information or who recovers any material is asked to contact police on 101."