Sanford police say the getaway driver in a convenience store robbery is a longtime city employee who has been placed on administrative leave.

Donna Gray, 56, is charged with robbery in connection with a holdup at East Side Convenience in Sanford at 4 p.m. Oct. 11. Also charged is her daughter, Jenna Gray, 25 and Matthew Prior, 25, who is Jenna Gray’s boyfriend.

Donna Gray currently works as an assistant to the city’s public works director and has been with the city since 1985, said City Manager Steven Buck. She has been placed on administrative leave with pay while the city conducts an internal investigation.

Asked why she is on paid leave, Buck said, “I have not had a chance to sit with the employee. The presumption of no wrongful act is the presumption we’re moving forward under.”

Buck would not say whether the city’s internal investigation will include an audit of finances in the Public Works Department.

Police on Thursday arrested Prior, charging him with one count of Class A robbery for robbing the store at gunpoint. As he ran from the store, Prior was hit by a car and lost a sneaker before getting into a waiting four-door Ford sedan, police said.

On Friday, police said the two women in the waiting car were Donna and Jenna Gray, with Donna Gray at the wheel.

Donna Gray appeared in court Monday and was released on personal recognizance bail. Jenna Gray also appeared in court, where her bail was lowered from $5,000 to $2,500. She remains in York County Jail.

Prior appeared in court Friday and his bail also was lowered from $5,000 to $2,500. He also remains in York County Jail.