A second suspect in the robbery of an 80-year-old woman in Accokeek has been arrested, police said.

Michael Elijah Brown, 24, was arrested Thursday in Montgomery County and is charged with robbery and assault, according to Prince George's County police. The other suspect, 25-year-old LeJean Nicola Lancaster, was arrested at the scene of the incident on Tuesday.

During the robbery, which took place on the 8400 block of Hamlin Street, Lancaster pushed the elderly woman and grabbed her purse, according to police. Lancaster tried to run away, but she was tackled and held down by the victim's husband and a Good Samaritan, police said.

According to police, Lancaster bit the two men who were restraining her, causing minor injuries. Meanwhile, police said, Brown hit the Good Samaritan in the face in an effort to free Lancaster. Brown then fled the scene. - Naomi Jagoda