JENKINTOWN, Pa. (AP) _ A woman accused of killing her mother and sister with heart medicine surrendered to police to face murder charges.

Bernice Cotlar, 63, appeared before District Justice Michael Richman Friday morning after she was released from Friends Hospital, where she had been undergoing psychiatric treatment and evaluation.

Police found the bodies of Ethel Jamison, 90, and Leslie Jamison, 69, in Mrs. Cotlar's apartment July 30. The Montgomery County Coroner's Office said they died from an overdose of Digoxin, a prescription drug for slowing a rapid heartbeat.

According to a police affidavit, Mrs. Cotlar said she and her sister had killed their mother, and she helped her sister commit suicide before trying to kill herself.

Ethel and Leslie Jamison were residents of the Rydal Park Nursing Home in Abington Township. Police said Ethel Jamison suffered from Alzheimer's disease and Leslie Jamison had a history of mental illness.

She was remanded to Montgomery County Prison in Eagleville without bail.