While the New Mexico Department of Health said it can’t pinpoint the baby’s exact cause of death, officials believe it could have been linked to the mother’s drinking raw milk during pregnancy.

Health officials in New Mexico are warning against consuming raw dairy products after a newborn baby in the state died from a listeria infection that they say was likely contracted when the baby’s mother drank raw milk during pregnancy.

The New Mexico Department of Health in a news release said that officials believe the mother consumed unpasteurized milk while pregnant, which could have led to the listeria infection.

Officials cannot pinpoint the exact source of the listeria that led to the baby’s death, the release said, but it noted that “the tragic death underscores the serious risks raw dairy poses to pregnant women, young children, elderly New Mexicans and anyone with a weakened immune system.”