Gardaí are questioning four people who were arrested in Tallaght after a large amount of heroin and cannabis resin was seized yesterday evening.
The four, three men and a woman, were detained after a house in Ashfield Avenue, Kingswood, was raided by detectives.
Heroin and cannabis resin with an estimated value £120,000 was seized. Cash was also recovered.
The four are being held at Tallaght Garda Station under Section 2 of the Drug Trafficking Act.