The cannabis plants seized in Castlewellan
Police have arrested four people after two cannabis factories were discovered in Castlewellan.
The cannabis plants are believed to worth over £150,000.
DCI Ian Wilson said, "Officers carrying out proactive drugs searches at properties in the Circular Road and Corrywood Park areas yesterday uncovered two substantial cannabis factories."
Two 33-year-old men and a 22-year-old woman were detained in the Circular Road.
A 30-year-old man was also arrested in Corrywood Park.
All four remain in custody this morning and are assisting the police.