Police say they won't tolerate urban street gangs
Twenty five people have been arrested in Swansea following four days of raids on homes across the city.
Operation Blue Thames has targeted drug dealing and associated gang violence in Swansea and London.
Three more people were arrested in the capital during the crackdown.
South Wales Police were joined by their colleagues in The Met and the National Crime Agency to execute eight drug warrants in Swansea and London.
DI Dave Peart said: "South Wales Police remains committed to tackling the drug dealing and violence associated with these gangs - and this enforcement highlights our tough approach to effectively addressing these issues.
"Ultimately our aim is to make south Wales a hostile environment for organised crime groups - and part of that is effective engagement with the communities we serve to ensure we can intervene and keep vulnerable people safe.
"The Western BCU will not tolerate Urban Street Gangs operating within our area - and we are committed to disrupting and dismantling these organisations. So the message is simple - stay away!"
If anyone has information regarding drug supply in the Western Bay area you can contact the independent charity Crimestoppers Wales, anonymously, by calling 0800 555 111.