DETECTIVES arrested two men on suspicion of conspiracy to import heroin and possession of heroin with intent to supply.
They were detained on the the 1971 Misuse of Drugs Act after police stopped a car in Hillsborough, Co Down, on Monday evening.
It was part of an intelligence-led operation to prevent more lethal heroin reaching the streets of Northern Ireland.
The pair, aged 33 and 46, are currently helping the PSNI with their inquiries at the PACE custody suite at Musgrave PSNI station.
Detective Inspector Andy Dunlop from the PSNI’s Organised Crime Branch said: “No drugs have yet been seized but our enquiries are continuing.
“I would appeal to anyone involved in the supply of heroin to consider those who suffer daily from misuse of this killer drug.
“Anyone convicted of supplying heroin can expect to face a lengthy period in prison.”
A number of operations are currently ongoing to stem the tide of heroin on the streets.
One is to tackle those at a street level peddling drugs to desperate users.
The second operation is to prevent heroin reaching Northern Ireland from Dublin.