Seven people have been arrested in a series of early morning drugs raids in the Barry and Ely areas.
Detectives say the raids were the result of a "prolonged and complex" investigation into a drugs line in South Wales.
Several address in both areas were searched and 'numerous' drug hauls and mobiles phones were seized during the operation on Thursday morning.

A spokesperson for South Wales Police said the force "has a zero-tolerance approach to drug dealing and this investigation is just one example of how we are tackling drug dealing in the community."
"We can, and regularly do, act upon the information provided to us by the public, so please keep it coming."
In Cardiff Bay, more than 60 people have been arrested in recent months during a crackdown on drug dealing in the Butetown and Grangetown areas.

Former Holm View Leisure Centre could become education and community hub
ScoutsCymru members represent Wales at Royal Albert Hall Festival of Remembrance
Plans for indoor market at former Barry Wilko move forward
Police given additional powers to deal with anti-social behaviour in Barry
Senedd passes supplementary budget with £60m boost for additional learning needs
Future of planned festive events in question after criminal damage to Barry Town Hall
Consultation to open on plans for 35MW solar farm near Penarth
No Trains through the Vale of Glamorgan this Sunday
Police and Cardiff City launch operation to tackle matchday anti-social behaviour
Free leaf and fallen fruit collections return in the Vale
Barry retains Fairtrade Town status until 2029
£1m improvements planned for Pencoedtre Park as splashpad work set to begin
Plan submitted for new independent school on site of well-known charity farm
Is your hot water bottle safe?
Solicitor sentenced for defrauding Cancer Research UK
Cate is crowned champion!
WATCH: Winner of The Voice UK Cate McHugh duets with Sir Tom Jones
Barry filmmaker takes her documentary to the big screen in New York
Pupils leave their mark on new school at steel signing event
£3m refurbishment plans revealed for Cowbridge Town Hall