COTTAGE GROVE, Minn. (WCCO) — Police say a 3-week-old infant suffocated and died after his mother fell asleep on top of him.

According to Cottage Grove Police, they received a call around 10:30 a.m. Tuesday to a home where the newborn boy was not breathing.

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Rescue personnel performed CPR and the infant was transported to a nearby hospital where he was pronounced dead.

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The Ramsey County Medical Examiner’s preliminary findings showed the infant died of asphyxia and ruled the death was accidental.

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Authorities are still investigating and the case will be forwarded to the Washington County Attorney’s Office to review for possible charges.