"Bureau of Prisons officers and officials are actively taking actions to kill R. Kelly," Kelly's Chicago-based attorney, Beau Brindley, told Business Insider in a statement on Tuesday.

R. Kelly was sent to Duke University Hospital in Durham after an alleged overdose.

Federal prosecutors in Chicago on Monday called imprisoned singer R. Kelly a serial and unrepentant child molester and say his recent claims of a plot by prison officials to have him murdered are both...