Trying to delete mass users

[PedroNL]

Dear All,

 

I have a 1320 users who are in a primary group and I need to delete them.  Is there a easy way to do that.  Also to take note there is 150 users who have that group a secondary.  Is there a mysql script or some plugin that I can do this easily?

[Colonel_mortis]

Go into the members page in ACP, and click the cog next to the search box. Select the group in the search page, and click search. It should show all of the members. You can then click "Prune members found" to delete them.