She was last seen in the Greenfield, Mass. area.

Griffin's sister, a West Springfield resident, called police shortly after 5 p.m. Tuesday, telling them that Griffin had left her letters that expressed emotional distress. Griffin had left her sister her house keys and told her to take care of her cats.

West Springfield police asked Westfield officers to check on Griffin, but they did not find her at her Meadow Street apartment.

Police describe Griffin as five feet four inches tall and 120 pounds with brown eyes and dark hair with a patch of gray on top.