CHICAGO (STMW) — A pregnant woman lost her baby after a group of people beat her Monday night on a sidewalk in the Back of the Yards neighborhood.

The woman, 25, was walking in the 4800 block of South Laflin Street about 11 p.m. when a group of males and females approached her and exchanged words, police said.

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The group punched the woman and knocked her to the ground, before continuing the beating, landing blows to her arms and stomach, police said.

The woman was at least 7 1/2 months pregnant at the time of the assault, a spokesman for the Cook County Medical Examiner’s office said.

She was treated at Mount Sinai Hospital, where the baby girl was born stillborn Tuesday afternoon, the medical examiner’s office said.

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The woman’s home address is listed in the 4700 block of South Paulina Street, the medical examiner’s office said — roughly four blocks away from the site of the attack.

An autopsy Wednesday determined the baby died in the womb as a result of the attack, the medical examiner’s office said.

No one was in custody Wednesday night for the beating, which may be gang-related, police said.

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