Gardai have discovered a quantity of firearms and drugs in a search in the Sallins area of Co Kildare.
€3m of suspected heroin and cocaine were recovered during the operation.
The weapons were discovered overnight and this morning by officers connected to the Drugs and Organised Crime Bureau.
At least one AK47 assault rifle is believed to be among the items seized.
An amount of ammunition and drugs were found.
A senior source said it was a "significant" seizure.
The drugs, believed to be cocaine and heroin, were found concealed in furniture and other compartments around the house according to reports.
Justice Minister Frances Fitzgerald said the raid showed that gardai were being "relentless and resourceful" in their crackdown on organised crime.
Gardai believe the find is linked to the Kinahan cartel and follows on from last week's massive success when more than 15 weapons were seized in an industrial unit in Baldonnell.
Gardaí recovered 15 firearms, hundreds of rounds of ammunition and almost half a million euro during searches on Tuesday and Wednesday
Three men have been charged in connection with the seizure of firearms and ammunition at Greenogue Industrial estate, Baldonnel, Co Dublin.