DEADWOOD, S.D. (AP) — Police in Deadwood are investigating the death of a woman who was killed when the golf cart her husband was driving plunged off a 10-foot-high retaining wall and rolled on top of the couple.

Fifty-four-year-old Monica Beer, of Deadwood, died Saturday evening at the scene near the Deadwood Gulch Resort.

Police Chief Kelly Fuller tells the Rapid City Journal that Beer’s husband, Greg Vecchi, was taken to a hospital with serious injuries and later released.

Fuller says authorities are still investigating how the incident happened.