Two men have were arrested after drugs with an estimated street value of £100,000 were seized, police said on Thursday.
Ecstasy pills, herbal cannabis and diazepam tablets were found during planned police raids in Coleraine and east Belfast on Wednesday.
A quantity of cash and other drugs paraphernalia were also removed.
The men who were arrested were aged 25 and 32.
Anyone with information which could assist police is asked to call 101.