QUINCY (CBS) – A 27-year-old Quincy woman is facing charges in the death of a baby.

Prosecutors say Shu Feng Hsu assaulted 11-month-old Chloe Chen in February. Police say that she either shook her niece or struck her in the head.

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The baby died two days later at Boston Medical Center.

A preliminary autopsy leads doctors to believe that Chen’s death was caused by trauma to the head.

Shu Feng Hsu. (Image Credit: Quincy Police)

Hsu will be charged with assault and battery on a child causing serious bodily injury.

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Police were called to the home on Sewall street February 15. Hsu was the only adult in the home when Chloe Chen became unresponsive.

Audio that was recorded inside the home picked up multiple thumping sounds. Investigators believe that these sounds could be the trauma to the baby.

“This investigation is not yet complete, but working with Quincy Police we have developed sufficient evidence for this charge to be brought and arraigned today,” Norfolk District Attorney Michael Morrissey said. “The investigation continues.”

Hsu has a two year old daughter who has since been removed from the home and staying with a relative.

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Hsu is being held on $200,000 bail and is set to appear back in court April 23.