Officers from the County Lines Task Force West Midlands conducted multiple warrants at addresses across Dudley on Friday after being tipped off about a County Lines operation.
Arrests were made at the addresses and a number of Class A drugs were recovered, as well as several machetes.
The taskforce confirmed it had taken a number of people into custody for questioning about the County Lines operation.
A spokesman for County Lines Task Force West Midlands said: "The Taskforce have more people in custody after conducting multiple warrants in Dudley today.
"Class A drugs and machetes were recovered as our officers start to question the suspects of another county line which we’ve shut down."
An allegedly "key" organiser of a County Line has also been charged and remanded to stand trial, however the suspect has not yet been named.
The spokesman added: " A key organiser of a county line impacting the people of West Mercia Police and West Midlands Police has been charged and remanded by the Taskforce to await trial."