COLUMBUS, Ohio — A judge has sentenced a woman who operated a southern Ohio pill mill linked to several drug overdose deaths to more than 12 years in prison.

Denise Huffman also faces three years of supervised release after she serves her time.

Judge Sandra Beckwith sentenced Huffman in federal court in Cincinnati Tuesday shortly after sentencing the doctor who worked at one of Huffman's clinics to four life terms.

Huffman pleaded guilty in 2010 to one count of operating Tri-State Health Care and Pain Management as a place whose primary purpose was the illegal distribution of prescription drugs.

Her daughter, Alice Huffman, pleaded guilty to the same count and was sentenced last year to five years in prison.