A New York prison employee has pleaded guilty to helping two killers escape last month.

Joyce Mitchell, a tailor shop instructor at Clinton Correctional Facility, was jailed shortly after Richard Matt and David Sweat escaped on June 6. Matt was shot and killed three weeks later. Sweat was captured and sent to another prison.

Mitchell admitted providing hacksaw blades, chisels, a punch tool and a screwdriver to Matt. Authorities say she agreed to be their getaway driver but backed out at the last moment.

Mitchell was in court Tuesday morning and pleaded guilty to first-degree promoting prison contraband and fourth-degree criminal facilitation.

The 51-year-old faces a sentence ranging from 2 1/3 years to 7 years in prison.

(AP)