ST. CLOUD - A man already in jail for selling drugs to undercover officers is facing additional charges.

The Central Minnesota Violent Offenders Task Force concluded an investigation into the sale of drugs by 44-year-old Zachary Taylor.

He's accused of selling methamphetamine and heroin to undercover investigators on several occassions, prior to going to prison.

He's currently serving time in the Department of Corrections Lino Lakes Prison.