Gardaí have seized drugs with an estimated value of €32.8 million during an operation at the port of Cork.
Gardai, along with Revenue officers, seized 546kg of a synthetic drug, suspected to be crystal meth, on Friday.
Officers from the Kerry Divisional Drugs Unit, Cork, and a number of other units were involved in the operation.
Follow-up searches were conducted in Kerry and Cork which resulted in the arrests of two men and the seizure of two firearms.
The men, both aged in their 40s, are currently detained at Garda stations.
Investigations are ongoing.
A Revenue statement said: "This seizure is part of Revenue’s ongoing joint investigations involving organised crime groups and the importation, sale and supply of illegal drugs.
"If businesses, or members of the public, have any information regarding drug smuggling, they can contact Revenue in confidence on phone number 1800 295 295."
