GARDAI have questioned a 79-year-old man after seizing two cannabis growhouses in nearby houses.
As a result of an intelligence-led operation, gardai discovered cannabis plants with an estimated street value of €250,000.
The raids involved officers from the Kanturk district drug unit, backed up by armed members of the regional support unit.
They swooped on the rural houses in Lismire, Co Cork, yesterday morning.
The 79-year-old suspect was arrested along with a 55-year-old man and both were taken for questioning to Kanturk station under section 4 of the Criminal Justice Act.
The houses, located off the Newmarket to Kanturk road, were found to contain almost 300 cannabis plants and gardai said a significant number of them were mature and close to harvesting.
After discovering the plants, officers carried out a detailed search of the properties and later found a quantity of harvested cannabis.
A technical examination was completed on both growhouses and detectives described the set-up as highly sophisticated.
Last night, the two men were released without charge.
Gardai will now prepare files for the Director of Public Prosecutions, who will determine if criminal charges should be brought.
This was the second discovery of a cannabis growhouse operation in Cork in eight days.