A Brockton woman pleaded not guilty on Monday in Brockton District Court after she allegedly assault her 4-year-old child inside a Shaw’s supermarket, according to the Plymouth district attorney’s office.

Marie Mars, 42, was charged with one count of assault and battery with a dangerous weapon (a door) and one count of assault and battery, after witnesses allegedly saw her slam her 4-year-old son’s hand against a door with a shopping cart in the supermarket on Belmont Street, said Russ Eonas, a spokesman for the district attorney.

Police received calls at about 4 p.m. Saturday from shoppers in the market and responded to the scene, said Brockton police Lieutenant Paul Bonanca.

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The child had no visible injuries and did not receive medical attention, police said. Officers alerted the state Department of Children and Families of the incident, said Bonanca.

Mars is being held on $2,500 cash bail. She was ordered to obey and comply with the DCF and probation officers, sign a release regarding her mental health, and allow probation officers to visit her home at anytime, said Eonas.

She is set to return to court on March 3 for a pre-trial conference, said Eonas.

Mars has a pending case, in which she was charged with assault and battery with a dangerous weapon, and threatening to commit a crime. She is set to appear in court on March 24 for that case, said Eonas.