A grandmother from Brownsville was stabbed to death early Saturday morning while trying to break up a fight in her apartment building.

Relatives of 43-year-old Vicky Griffin say the woman heard an argument in the hallway outside her fifth-story apartment in Tilden Houses at around 5:30 a.m.

When Griffin came out and tried to intervene, her family says, the grandmother of five was stabbed in the chest. Griffin was rushed to Brookdale Hospital, where she was pronounced dead on arrival.

Police have arrested one suspect in the stabbing. Officers say witnesses are cooperating with the investigation. Authorities ask anyone with information about the fatal stabbing to call Crime Stoppers at 1-800-577-TIPS.