Tyson Fury's boxing licence has been suspended pending further investigation into "anti-doping and medical issues", the British Boxing Board of Control has confirmed.
Fury, ahead of this announcement, vacated his WBO and WBA heavyweight titles on October 12.
In a statement Fury's promoters, Hennessy Sports, said the heavyweight boxer wants to "fully focus on his medical treatment and recovery".
The promoter added: "Out of respect for the governing bodies, the sport of boxing and the heavyweight division, Tyson has made the difficult decision to vacate the belts".
Fury said that it was "only fair and right and for the good of boxing to keep the titles active".
The 28-year-old has not fought since beating Wladimir Klitschko in November 2015 and has admitted taking cocaine to battle depression.