GRAND TRAVERSE COUNTY, Mich. – An investigation is underway after a four-year-old found a loaded handgun inside a bathroom at a Michigan mall on Friday evening.

The four-year-old girl found the handgun inside the Macy's bathroom at Grand Traverse Mall in Traverse City, Michigan.

WPBN reports the father of the girl called police after his daughter brought the handgun out of the bathroom.

Police have not identified the origin of the gun, but are reviewing surveillance video.