It was uncovered during a search yesterday.
Gardaí have detained two Lithuanian Nationals after a cannabis grow house was found in Leitrim.
It was discovered during a search of a rented property in the Manorhamilton area last night.
50 fully mature cannabis plants, 90 plants in the early stages of growth and 1kg of processed cannabis herb was seized during the search. Gardaí estimated the total value of the seizure is €60,000. They also seized cannabis cultivation equipment during the search.
The two men – aged 49 and 22 – were arrested during the operation.
Both are currently detained under Section 2 of the Criminal Justice (Drug Trafficking) Act, 1996 at Ballyshannon Garda Station.
The operation was led by Gardaí from Manorhamilton supported by members of the Armed Support Unit.
An examination of the site is continuing.