Sean “Diddy” Combs has reportedly been transferred to solitary confinement at Federal Correctional Institution Fort Dix in New Jersey following allegations that he obtained contraband and paid other inmates for special treatment.

Combs was moved after reports detailed the alleged perks he was receiving while incarcerated, according to a person familiar with the matter. NBC News reported that he had obtained contraband, including cellphones and premium liquor, and paid other inmates to perform tasks for him. The Bureau of Prisons declined to confirm or deny the move, citing privacy, safety, and security reasons.

The reports were first carried by TMZ. NBC based its account on interviews with four men who spent time in the same prison unit. According to those inmates, Combs allegedly paid prisoners to prepare special meals, clean bathrooms and shower areas before he used them, do his laundry and make his bed. One also claimed he received Chinese-style massages. NBC obtained photographs and video from inside the facility that appeared to show Combs using an unauthorized cellphone.

Former Bureau of Prisons special investigator Vito Maraviglia said inmates can be placed in solitary confinement while officials investigate misconduct allegations. Prisoners in the unit are generally confined to their cells for at least 23 hours a day, wear orange jumpsuits and have limited access to commissary and showers. Combs had previously been sent to the unit last summer after a fight with another inmate.

Combs is serving a 50-month federal sentence after a jury convicted him on two counts of transporting people across state lines for prostitution. He was acquitted of the more serious sex-trafficking and racketeering charges that carried the possibility of a life sentence.

Attorney Gloria Allred, representing a woman suing Combs over allegations dating back more than two decades, called for an immediate federal investigation into the reported prison conduct and said prosecution could be warranted if the cellphone claims are proven. Combs has denied the separate rape allegations, and the civil case remains ongoing