An argument between a Shelby County husband and wife led to a murder-suicide on Sunday night.

Helena police and firefighters responded at 8 p.m. Sunday to a home in the 3600 block of Timber Oak Circle. Helena Police Chief Pete Folmar said once officers arrived on the scene, they found 43-year-old Danielle Michael Hines dead from a single gunshot wound.

As officers searched the home further, they found Roland Seaburn Hines, 45, also dead from a single gunshot wound. Witnesses told police that before the shots were fired, the couple had been engaged in a heated argument.

Folmar said it appears that Roland Hines shot his wife and then took his own life. The investigation is ongoing.