Police have recovered and made safe an improvised explosion device following a house search in Keady in south Armagh.
A man in his 40s was arrested on suspicion of attempting to make explosives in suspicious circumstances on Wednesday.
He is currently assisting police with their enquiries.
Officers carried out a search at a property in the Tassagh Road area in support of an investigation by An Garda SÃochána (Irish police) in county Monaghan in the Republic of Ireland.