LAURELTON, Pa. (WJW) – Pennsylvania State Police are investigating an unusual death that happened at a tractor-pull event at a fair.

Troopers responded to the Union County West End Fair Friday evening around 8:30 p.m.

According to the report, a tractor had a malfunction during a tractor pull event.

The exhaust wheel became dislodged and ejected, and a piece of the wheel hit a mother who was watching the event in the neck.

Brandy Horner, 33, of Johnstown, Pa., was killed.

“Her world revolved around family, but especially ‘her 3 boys,’” Troy, Blake and husband Travis, her obituary states.

Horner was also in the education field.

“She was employed by Learning Lamp of Richland and was a member of St. David’s Lutheran Church, Davidsville,” her obituary reads.

Horner will be buried this week.