LANSING, Mich. (AP) -- The Michigan Catholic Conference is suing Obama administration officials over the mandate requiring most employers to cover birth control.

The conference said Monday that the mandate violates religious freedom by requiring many religiously affiliated hospitals, schools and charities to comply. President Barack Obama offered to soften the mandate to accommodate religious groups, but U.S. Roman Catholic bishops say the change doesn't go far enough.

The conference says it has provided medical insurance coverage to church workers since the 1970s and currently offers insurance at more than 1,100 Catholic institutions employing around 10,000 people.

Other Catholic entities are filing similar lawsuits against the mandate.

The Michigan conference filed its lawsuit Monday in the U.S. District Court for the Southern District of Ohio. Co-plaintiff Franciscan University is located in Steubenville, Ohio.