A Mexican teacher is denying she locked a 7-year-old child inside a classroom for hours as punishment.
Teacher Zulema Garza says it was an accident. She says she didn't realize the boy was still inside the classroom in the city of Monterrey when she locked the door and went home Monday.
Garza spoke to TV Azteca on Wednesday, a few hours before state police officers took her in for questioning.
Police rescued the boy around midnight Monday, when they found him sleeping under the teacher's desk.
The boy's mother has filed a criminal complaint.
She says the teacher had abused her son at least once before by taping him to the legs of a desk.