Responding to a grand jury report that found "substantial evidence" of sexual abuse of children, the Philadelphia Catholic Archdiocese has placed 21 priests on administrative leave.

Although 37 priests were identified last month for allegedly behaving inappropriately with children, the grand jury said it had seen the files of only about 20 priests, The Philadelphia Inquirer says.

In a statement, the archdiocese said five others would have been put on leave but two are serving in other archdioceses, while three others "have not been in active ministry." (One was on leave, and two others are incapacitated.) For the two serving elsewhere, the archdiocese said it would notify their superiors.

The remaining priests won't be put on leave, the archdiocese said, because the grand jury "found no further investigation is warranted."

In a separate statement, the Philadelphia archbishop, Cardinal Justin Rigali, said, "These have been difficult weeks since the release of the grand jury report: difficult most of all for victims of sexual abuse, but also for all Catholics and for everyone in our community."

"As we strive to move forward today, I wish to express again my sorrow for the sexual abuse of minors committed by any members of the church, especially clergy," Rigali said. "I am truly sorry for the harm done to the victims of sexual abuse, as well as to the members of our community who suffer as a result of this great evil and crime."

Since the Feb. 10 grand jury report, two lawsuits have been filed against the archdiocese over allegations that clergy covered up sexual assaults by priests in the 1990s. The latest was filed Monday.