A man and a woman are being questioned by Gardai in Dublin in connection with a €400,000 euro drug seizure.

Cannabis herb was discovered by detectives when they searched a house in the Hillcrest Heights area of Lucan last night.

The search was carried out as part of a planned operation.

The man and woman, who are both in their twenties, are being questioned at Ronanstown and Lucan Garda stations.