Two men have been arrested after detectives tracked drugs with an estimated street value of 60,000 euro sent in an airmail parcel to a house in Dublin.
The package containing 1.5kg of mephedrone and 1kg of herbal cannabis was detected by Customs officials when it arrived at Dublin Airport on a flight from China.
Gardai tracked the parcel to an address in Hamilton Street, off South Circular Road, where an Irish man and a Brazilian man were arrested.
The pair, both in their 20s, are being held at Kevin Street Garda Station under Section 2 of the Drug Trafficking Act.
The joint operation involved Revenue's Customs Service, the Garda National Drugs Unit and the Kevin Street Garda Drugs Unit.
Mephedrone was formerly a so-called "legal high" sold in head shops.
It was recently banned by Health Minister Mary Harney under the Misuse of Drugs Act.