GARDAI ARE CONTINUING to question five people in connection with discovery of three cannabis growhouses in Cavan and Dublin yesterday.

Almost 1,000 cannabis plants at various stages of growth were seized by Gardaí at three growhouses in Dublin and Co Cavan as part of Operation Nitrogen, which is investigating an Asian organised crime group, RTÉ reports.

Three people, two males and one female, are being held at Crumlin garda station, after the 28-year-old woman brought provisions to two men who had been locked into a warehouse in the Jamestown Business Park in Inchicore yesterday.

The two men aged 27 and 33, were cultivating some 500 cannabis plants with an estimated street value of over €200,000.

A second growhouse was discovered in the Park West Enterprise Centre where another 270 plants with an estimated street value of €120,000 were found.

Officers from the garda national drugs unit as well as units from Clondalkin and Ballyfermot carried out the raid where one man was arrested, the Irish Independent reports.

A third growhouse was uncovered in Ballyconnell in Co Cavan where 209 plants worth around €80,000 were uncovered and one man was arrested.

All five detainees can be questioned for up to a week and it is reported that one of the suspects is subject to a deportation order.