Police, assisted by the Army, are searching a house in south Armagh in connection with the discovery of improvised explosive devices in the Republic of Ireland.
The search at a property on Tassagh Road, Keady, is linked to an ongoing investigation by gardaà (Irish police).
On Sunday, gardaà arrested a man in his 40s in County Monaghan.
They said it followed the discovery of devices in the north-east and south-west of the Republic of Ireland.
