Police are currently at the scene at a property in the Fane Grove area of Culloville following the discovery of suspected historic munitions.
Ammunition Technical Officers have been tasked and a number of homes have been evacuated.
The public are advised to avoid the area at this time.
Sinn Féin MLA Conor Murphy said the ongoing incident in Culloville is causing serious disruption for local residents.
The Newry Armagh MLA said: “The PSNI is dealing with an ongoing incident in Culloville involving suspicious items.
“This incident is causing serious disruption to the lives of local residents, some of whom have had to leave their homes.
“A number of homes in Malachy Conlon Park and Fane Grove have been evacuated and I urge people to co-operate with the ongoing police operation.
“I hope this situation can be resolved quickly and safely for all local residents.”
