A 25-year-old woman was arrested for robbing an 80-year-old woman in Prince George's County, police said, and officers are looking for a second suspect in the incident.

The robbery took place at about 12:15 p.m. Tuesday in the 7000 block of Berry Road.

According to an investigation by Prince George's County police, LeJean Nicola Lancaster, of Lanham, held open the door of a carry out restaurant for the elderly victim and her husband. As the couple was walking, Lancaster pushed the victim and grabbed her purse.

Lancaster tried to run away, but she was tackled by the victim's husband and a Good Samaritan. Lancaster bit the two men who were restraining her, and another man hit the Good Samaritan in the face an effort to free Lancaster, police said.

Lancaster was arrested at the scene and was charged with robbery and second-degree assault. She has admitted to her involvement in the robbery, police said. The man who hit the Good Samaritan fled the scene, and police released a surveillance photo of him.

Anyone with information can call Crime Solvers at 866-411-TIPS.