3 million euro worth of substances have been recovered by Revenue at the An Post facilities.
According to new Freedom of Information figures, there were 2,211 drug seizures in the first ten months of this year in Portlaoise, Dublin, Athlone and Cork mail centres, as Revenue intercepts substances being posted.
This is almost twice as many as in all of 2018, when there were 1,156 seizures.
This year, the majority of the interceptions were cannabis, amounting to more than 1,300.
Dublin Mail Centre had the highest number of all drug seizures in the first ten months of this year, with 1,208.
Just over 3 million euro worth of substances were recovered in the four centres in the first ten months of this year.
This compares to 2.6 million in all of 2018, suggesting many of the recent drug seizures are of a smaller value.
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