THE Police Service of Northern Ireland (PSNI) have said a poster with details of three serving officers was placed on a bus shelter in Derry.

An investigation has been launched into the incident in Chapel Road in Dungiven on Thursday.

It follows a major data breach earlier this month where the details of about 10,000 officers and staff were mistakenly released online.

Assistant Chief Constable Chris Todd said: “We have contacted those involved to make them aware and recognise the impact this may have on them and their families.

“The safety and welfare of all our officers and staff remains our priority, and additional security and reassurance patrols have already been implemented across Northern Ireland as part of our organisational response.

READ MORE: PSNI: Northern Ireland police staff and civilians in major data breach

“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 dashcam footage.”

It comes after a document purporting to be from the major police data breach was posted overnight on a wall facing a Sinn Fein office in Belfast, in what the party described as a “sinister” attempt to intimidate earlier this month.

Chief Constable Simon Byrne is facing growing pressure, with both rank and file officers and civilian staff considering confidence votes in his leadership.

The embattled Chief Constable insisted he would not resign following a marathon session of his oversight body, the Policing Board, on Thursday.

The Police Federation has called an extraordinary meeting of its executive central committee next Wednesday when it said a confidence vote may take place into the PSNI leadership.

The Superintendents’ Association of Northern Ireland, which represents more senior officers, said it was standing with the federation.

In a social media post it said the “senior executive team must listen to our collective concerns”.