Drugs detectives have seized a 4 million euro haul of heroin stashed in a truck.
The lorry was stopped by officers on the M1 motorway at Drogheda in what they described as an intelligence-led operation.
A search of the vehicle uncovered 27 kilos of the drug. The large haul has an estimated street value of 4.05 million euro, say detectives. It has been sent for forensic tests.
A man, aged 40, and a woman, aged 43, were arrested at the scene last night. During a follow-up operation another man, aged 40, was also arrested and taken into custody.
The three suspects are being questioned at Coolock and Drogheda Garda stations. They are being held under section 2 of the Drug Trafficking Act.
In a statement, a Garda spokesman said: "These operations use advanced analytical and intelligence methods to disrupt criminals and dismantle their networks.
"Drug seizures play a critical role in targeting the livelihood of criminals and reducing their ability to carry out illegal activities.
"Drug seizures also help protect communities from the devastating impact of drugs and the associated criminality."
In a separate operation last night, more than 2 million euro worth of cocaine was recovered in Dublin.
During a raid on a house on Stillorgan Road in Donnybrook, gardai discovered 32 kilos of the drug. It is believed to have an estimated street value of 2.24 million euro.
Two men, aged 27 and 37, were arrested at the scene and are being questioned at Blackrock Garda station under section 2 of the Drug Trafficking Act.