A Long Beach husband and wife have been arrested in the death of their month-old infant who authorities say showed signs of ongoing physical abuse.

The Long Beach Press-Telegram reported that Michael Cross, 42, and Melissa Swanson, 34, were arrested Friday at their home without incident. They were both charged on Tuesday. Cross also was charged with possession of narcotics for allegedly having cocaine.

Long Beach police spokeswoman Lisa Massacani says Michaela Cross was pronounced dead by paramedics at the family's home last Thursday.

Massacani says a coroner's autopsy confirmed investigators' suspicions the death was not accidental. She says the injuries were consistent with blunt-force trauma.

The Los Angeles County Sheriff's Department website says Michael Cross is being held on $1 million bail, Swanson is being held on $100,000 bail.

Source: The Associated Press