BOARDMAN, Ore. (AP) — Morrow County District Attorney Justin Nelson says he will not charge a Boardman kindergarten teacher accused of forcing students to wear diapers as punishment.

Nelson said police interviews with 14 students failed to provide enough evidence to back up the claims of three students who said the teacher put diapers on students for "acting like a baby."

The East Oregonian reports the kindergartners gave conflicting statements and some said no students ever wore diapers.

Superintendent Dirk Dirksen said Monday the school district will conduct its own investigation with an outside investigator. That will determine whether the teacher at Sam Boardman Elementary School will face discipline