Andrew and Tristan Tate were arrested by US Marshals in Miami, Florida, on a sealed warrant.
The news comes in regard to an alarming list of charges linked to the popular brother duo.
The extradition request was put forward by the UK, where the brothers reportedly hold dual British-US citizenship and hence were detained just before a bare-knuckle boxing event.
The arrest followed a statement issued by the UK's Crown Prosecution Service, which authorized a total of 59 combined criminal charges involving seven alleged victims for offenses that arose between 2010 and 2017.
Andrew Tate faces 42 charges, including seven counts of rape, three counts of sex trafficking, three counts of assault occasioninng to body harm, and 19 counts of extreme porn and indecent images of a child.
Tristan Tate faces 17 charges, including two counts of rape, three counts of sex trafficking, and one count of sexual assault.