Three men remain in custody after Gardaí conducted a number of searches in the Letterkenny area yesterday.
A number of residences were searched during the operation and a total of eight people were arrested.
Three people remain in Garda custody, one has been released without charge with a file being prepared for the DPP, and the four others have been charged.
A quantity of drugs was also seized.
Gardai say no further information is available at this time and investigations are ongoing.
