The 52-year-old singer was taken into custody by NYPD detectives and Homeland Security Investigators in Chicago on Thursday afternoon, officials have shared with NBC's NY affiliate.
The U.S. attorney's office in Chicago said the pop star was arrested Thursday on a 13-count indictment.
"The counts include child porn, enticement of a minor and obstruction of justice", Joseph Fitzpatrick, a spokesman for the US Attorney's office, adding that further details would be released on Friday. Other details were not immediately released.
Kelly, 52, has been arrested in Chicago by the New York Police Department and National Security investigators.
Kelly's lawyers requested to see any communication between Avenatti and Cook County prosector Kim Foxx, who is under investigation for her handling of the Jussie Smollett alleged bias-beating hoax case.
Inside the court room, prosecutors handed over a DVD allegedly showing Kelly having sex with an underage female.
In this June 26, 2019, file photo, Musician R. Kelly departs from the Leighton Criminal Court building after a status hearing in his criminal sexual abuse trial in Chicago. Kelly faces 30 years in prison for each count of the aggravated criminal sexual assault charges.
In January, several of Kelly's alleged victims spoke about their experience in the Lifetime documentary, Surviving R. Kelly.
R. Kelly has denied the allegations made in the six-part series.
Facing 15 years for the charge, the Ignition singer was later acquitted by the jury of child pornography charges.