LINCOLN, Neb. (AP) — A lawsuit says a 12-year-old autistic boy suffered mental health problems after he was being repeatedly put in a Lincoln school’s seclusion room, treatment that his parents say they weren’t told about.

The lawsuit didn’t name the parents or the child so the child would be protected from harassment or ridicule.

The parents say the district didn’t follow policies and procedures that require staffers to document each incident of seclusion and notify parents within 24 hours.

Christopher Miller, the parents’ attorney, says records show the boy was put in the “safe room” up to 50 times from fall 2010 until March 2011.

The district’s attorney, John Guthery, said Monday that he hasn’t discussed the lawsuit with the district and can’t comment.