DARLINGTON — A Darlington girl has died from her injuries in an Aug. 29 UTV crash that also killed a Darlington boy, according to the Lafayette County Sheriff's Office.

Mikayla M. Stephens, 16, was critically injured in the UTV rollover and airlifted to the University of Wisconsin Hospital in Madison for treatment.

At about 10 a.m. Sept. 5, the Dane County Medical Examiner's Office notified the sheriff's office of her death, "the result of serious injuries she sustained in the crash."

Jordan G. Beesecker, 14, Darlington, had already died by the time first responders arrived to the crash scene.

The Aug. 29 accident happened on rural private property just west of Belmont Mound State Park. Deputies, the Belmont Fire Department, Belmont EMS and Southwest Health EMS were dispatched at 11:09 p.m. to 18848 County G, Town of Belmont.

An investigation found Beesecker was driving the 2013 Can-Am Commander UTV in a pasture when he appears to have lost control. The vehicle overturned, ejecting both him and Stephens. Neither was wearing a seatbelt.

A funeral was held this week in Platteville for Beesecker, the son of Bret and Jennifer (Bloom) Beesecker. According to his obituary, he was getting ready to begin his freshman year of high school, "loved the outdoors, four-wheeling, tubing on the Grant, canoeing, hunting and fishing" and "especially loved being with his family and spending time with his brothers and sisters."