Police have seized drugs worth approximately £645,000 over four weeks at Belfast International Airport in an operation targeting organised crime groups.
Detectives said some of the seizures were destined for Northern Ireland while others were destined for the Republic of Ireland.
Four people have also been charged with drug importation and supply offences.
PSNI officers, along with partners in the Organised Crime Task Force, have been conducting the proactive operation at the airport.
A PSNI spokesperson said: “Increasingly, we see criminal groups vary the methods they use in an attempt to bring drugs into this country.
“Accordingly, we are constantly changing our tactics to deal with this threat and to keep our streets safe.
“My message to those responsible is: if you try to bring drugs in by whatever means, we will be waiting to take them from you.”
The spokesperson added: “Throughout the process, there will be exploitation of individuals, whether in the production, supply or consumption of drugs.
“People should be aware there is no such thing as harmless drugs. Someone, somewhere in the process, is likely to have suffered.”
It said it will continue to “actively target” those responsible with the help of its partners.
The PSNI said that it relies on information from the public to focus efforts on on identifying those who “make their living by bringing drugs into and onto our streets and neighbourhoods.”
