THREE cannabis growhouses have been uncovered by gardai, who seized plants with an overall value of €2.1m.
One suspect was injured when he jumped from a roof of a converted factory unit while three others were taken into custody for questioning.
All are suspected members of an Asian drugs gang.
The cannabis was found when officers from the garda national drugs unit, backed up by local personnel, raided a unit at Clash industrial estate in Tralee, Co Kerry; a house at Falty, Oldtown, Athlone, Co Roscommon; and a house and sheds at Carrigaloon, Virginia, Co Cavan, yesterday.
Gardai found two Vietnamese men when they raided the industrial unit in Tralee. One was detained at the scene while the second received injuries when he jumped from the roof of the building. He was taken to Tralee general hospital for treatment. Both men will be questioned at Tralee station under Section 2 of the Drug Trafficking Act, which allows gardai to detain them without charge for up to seven days.
Officers seized about 1,800 plants, at varying stages of maturity, with an estimated value of €1.3m.
During a search of the house at Falty, members of the Roscommon/Longford drug unit as well as the national unit seized drugs worth €240,000. A Chinese national in his late 20s was arrested and taken to Roscommon station for questioning.
The premises in Virginia were raided by local personnel and national officers and the search yielded a large cannabis cultivation operation.
They found 700 plants, with an estimated value of €560,000, and arrested a Chinese man in his 50s. He was detained at Bailieboro station.
It was the second major drugs bust within three days. On Saturday, gardai found a significant mixing factory for cocaine and heroin when they raided a house at Johnstownbridge, Co Kildare.