A document related to the PSNI data breach has been posted on a wall opposite a Sinn Fein office in west Belfast.
Gerry Kelly MLA, has described the incident which happened overnight as ‘sinister’.
Assistant Chief Constable Chris Todd said: “We are aware that some redacted information from Tuesday, 8 August data breach has allegedly been posted on a wall in west Belfast.
“We have commenced an investigation into this matter.
“From the outset we have been planning for this potential development and that plan is now being put into place. We recognise the impact this may have on our officers, staff and their families and additional security and reassurance patrols have already been implemented across Northern Ireland as part of our organisational response.
“The safety and welfare of our officers and staff remains our priority and we have reminded them of their personal safety and security both on and off duty.”