LOCK HAVEN, Pa. (AP) — Authorities say they have filed murder charges against the colleague-turned-lover of a Pennsylvania woman 23 years after she disappeared.

Police arrested 65-year-old Loyd Groves on Thursday in connection with Kathy Heckel's June 1991 disappearance in Lock Haven. Her body has never been found.

The Beaver County man is being held without bail and couldn't be reached for comment.

Prosecutors say Groves killed Heckel after she told him she wanted to end their relationship. They say co-workers recalled them fighting at work hours before she disappeared.

The state attorney general's office took over the case in November 2013, enlisted help from the state police and FBI and brought evidence to an investigative grand jury.

Attorney General Kathleen Kane says she hopes Groves' arrest brings relief to Heckel's loved ones.