BOSTON (WHDH) -- MBTA police are looking for a woman who's accused of an assault on the Red Line.

Officers said the woman seen in these surveillance pictures attacked another woman Sunday night.

Investigators said the woman approached a husband, wife and their 2-year old child at the Broadway stop.

She began punching the woman in the head while a man attacked the woman’s husband. The victim was holding her two-year-old child at the time.

Officers arrested 43-year-old Joseph Pacheco.

Pacheco was accused of using a beer bottle to attack the victim's husband during the incident.

Pacheco was charged with assault with a dangerous weapon.