A former bank teller who quit her job after being robbed at gunpoint three times has sued her employer, claiming bank officials were negligent, her lawyer said.

Adrienne Griffin of Akron filed a lawsuit in Summit County Common Pleas Court last week. She claims officials at KeyBank were negligent for failing to bring in guards after the branch where she worked was robbed four times from 2002 to 2006.

Griffin quit after she was robbed at gunpoint for a third time on July 28, said her lawyer, Michael Stevens. After that robbery, a guard was posted, but only for a month, he said.

Griffin wasn't hurt in the robberies, Stevens said, but she suffered "severe emotional distress" that required medical treatment and resulted in loss of employment, according to the lawsuit. She had worked at the bank branch since 1992.

The lawsuit seeks at least $25,000 for each of three negligence claims related to the three robberies.

Michael Sherman, a vice president at parent company KeyCorp's Cleveland headquarters, said he couldn't comment on lawsuits, but said the company's highest priority is employee safety.

KeyCorp has more than 900 branches in Alaska, Colorado, Idaho, Indiana, Kentucky, Maine, Michigan, New York, Ohio, Oregon, Utah, Vermont and Washington.