A U.S. woman accused of killing seven babies she gave birth to over a decade was arrested on Sunday after police discovered the tiny bodies stuffed in cardboard boxes in the garage of her former home.

Megan Huntsman (39) who lived in the Utah home until three years ago, had the infants between 1996 and 2006, investigators said.

Officers responded to a call on Saturday from Huntsman’s estranged husband about a dead infant at the home, police Capt. Michael Roberts said. Officers then discovered the six other bodies.

Mr. Roberts declined to comment on a motive and what Ms. Huntsman said during an interview with investigators.

Neighbours in the middle-class neighbourhood said they were shocked by the accusations and perplexed that the woman’s older children still living in the home didn’t know their mother was pregnant or notice anything suspicious.

The spokesman said police believe the estranged husband and Ms. Huntsman were together when the babies were born, but the estranged husband isn’t a person of interest at this time. The man’s name was not immediately released.

“We don’t believe he had any knowledge of the situation,” Mr. Roberts told The Associated Press.

Asked how the man could not have known, Mr. Roberts replied, “That’s the million-dollar question. Amazing.”

The babies’ bodies were sent to the Utah medical examiner’s office for tests, including one to determine the cause of death. DNA samples taken from the suspect and her husband will determine definitively whether the two are the parents, as investigators believe.

The house is owned by the husband’s parents, and the man was cleaning out the garage when he made the grisly discovery.

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