SALT LAKE CITY (AP) — Utah police say they believe a toddler accidently suffocated under a bean bag chair after a day care worker sat on it.

Sgt. Joe Monson said Tuesday investigators came to the determination after reviewing a video recording and interviewing witnesses, but the investigation is still open.

Monson says prosecutors will review the case after the investigation is complete to determine if any criminal charges are warranted.

He says the child crawled underneath the chair Sept. 8, and the worker sat down later to read to the other kids without being aware the toddler was underneath.

Leonardo Sanchez died at a hospital shortly after being discovered.

Mother Danielle Sanchez has said he would have turned 2 in a few days. She says she doesn't understand how the child went unnoticed before his death.

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