Tag users in a comment similar to instagram in swift iOS -

i working on app similar instagram. contain list of images posted friends, each image has list of comments , in these comments user can tag other person using @username . please see screenshot

see words in red colour i.e @carlos or @fernando_cabrera . , when user click on @carlos tag, can see carlos's profile in new screen.

the problem facing making these comments via uilabel. how can make these tags clickable , add action them.

i add touch gesture on label in case of 1 tag. if label contains more 1 tag. there other approach should follow. functionality same instagram. please me , close deadlines , stuck in part :(

finally found cool sdk iftweetlabel make tags within uilabel. needed