A Minnesota man has filed a lawsuit accusing DeLaSalle High and the school's Roman Catholic parent groups of failing to protect him from sexual abuse by covering up the past of DeLaSalle brother.

The suit was filed in Ramsey County by Attorney Jeff Anderson, who has represented other victims of clergy sex abuse.

In this case, John Purdy of St. Paul says Brother Charles Anthony Raimond Rose, a teacher, repeatedly molested him at DeLaSalle when he was 16 and a student at the school.

The lawsuit claims Rose molested another boy prior to Purdy and that the school and The Christian Brothers of the Midwest, a religious order that operates the school, knew of that abuse, but allowed Rose to continue working with children.

Anderson says, accusations first surfaced against Rose in 1983 when he worked at high school in Concord, California.

The suit names as defendants the Christian Brothers of the Midwest in suburban Chicago, the Christian Brothers of Minnesota and DeLaSalle High School. It alleges they committed fraud by representing to their students that Rose was safe when they knew he had abused at least one boy.

The suit seeks $50,000 plus any other relief the court deems just.

Anderson says Rose now lives in Chicago near another DeLaSalle Catholic high school.

In a statement, the Christian Brothers of the Midwest says the 76-year-old Rose has not been active in the ministry or had any contact with minors since 2002.

The Associated Press contributed to this report.