A disgraced former Roman Catholic priest, jailed in 2010 for sexually abusing three altar boys, now faces sex charges involving three other victims.

Ontario Provincial Police in Haldimand County have charged Donald Grecco, 75, of Peel Region, with gross indecency and indecent assault on a male after another victim came forward to report sex assaults which occurred in Niagara Region in 1975 when the victim was about 13 years old.

Grecco will face the latest charges on Tuesday, Dec. 8 in provincial court in Cayuga.

Over the past several months, police have been investigating a series of sexual assaults which had occurred between 1975 to 1982 involving young males. The assaults occurred at locations in Niagara Region, Haldimand County and the United States.

Grecco was charged Sept. 25 with four more alleged sex crime offences involving two other victims. He will appear in provincial court in Cayuga on Dec. 8 on those charges.

Police say the alleged incidents occurred while the accused was a priest at St. Stephen's Roman Catholic Church, Cayuga, Haldimand County, St. Kevin's Roman Catholic Church, Welland, and St. Thomas More Roman Catholic Church, Niagara Falls, Ont.

Anyone with information regarding this case can contact the OPP at 1-888-310-1122, Crime Stoppers at 1-800-222-TIPS (8477) or at www.helpsolvecrime.com.

In 2008, Grecco was charged with a dozen counts of sexual abuse involving three altar boys and eventually pleaded guilty to three charges of gross indecency. He received a jail sentence of 18 months plus two years of probation. Grecco was released after serving just over 12 months in jail.