A 'significant' cannabis grow house has been discovered in Co Clare, gardaí say.

It was found during the search of a premises at Tinarana, Killaloe.

Officers found evidence of the production of cannabis at all stages - nursery, mature plants and dried plants.

The 'large number' of plants discovered are said to be worth an estimated €900,000.

A woman in her early 20s has been arrested at the scene.

She's being held at Ennis Garda Station under section 4 of the Criminal Justice Act 1984.

Gardaí say the search is ongoing.