A 64-year-old woman has been arrested after £100,000 of cannabis was found at a house in Enniskillen on Monday night.
The drugs were found in a follow-up search after £150,000 of cannabis was discovered at a house on south Belfast's Donegall Road.
Two men, aged 62 and 74, were arrested during the Belfast search. Two cars and a number of mobile phones were also seized.
All three of those arrested remain in custody.