TOWN OF FENNIMORE, Wis. -

A 9-year-old boy died Sunday after falling off an utility task vehicle, according to a release.

Officials responded to the town of Fennimore around 2:49 p.m. Sunday after hearing reports that a child fell off a UTV and fell underneath a running lawn mower, according to the release,

Officials said an investigation revealed that Steve Lendosky, 39, of Fennimore, was operating a Polaris Ranger in rural Fennimore and had three children riding in the back of the UTV.

Lendosky was pulling a brush hog type mower that had its motor running, according to the release.

Derek Lendosky, 9, stood up in the back of the UTV to grab a walnut off a tree, fell off and went under the mower, according to the release.

Officials said Derek Lendosky was declared dead at the scene.