It follows a search of a property in the Havana Gardens area of north Belfast today, Wednesday 16 May.
Detective Inspector Chris Millar said: “A man and a woman, aged 59, were arrested on suspicion of firearms and explosives offences. T
“They are currently in police custody, assisting with enquiries.
“Detectives also seized a number of items which have been taken away for examination.
“There are no further details at this time.”