The NYPD is investigating a disturbing attack on a pregnant woman in the Bronx. 

Video shows two women kicking the victim at a building on St. Ann's Avenue last Thursday afternoon.

Police say the 19-year-old was walking down the stairs when her attackers knocked her to the ground. 

After kicking her, the women took her cell phone and ran away.

The pregnant woman was treated at the hospital for bruises on her face.

Anyone with information on the case should contact the Crime Stoppers hotline at 1-800-577-8477, or text CRIMES and then enter TIP577, or visit