COPPERTON — Three boys ages 14, 12 and 11 were involved in a single-vehicle rollover accident shortly before 4 a.m. Sunday at approximately 10200 S. 8400 West, according to Unified Police Department reports.

The 14-year-old was treated for his injuries and placed in the Salt Lake County juvenile detention center, UPD detective Ken Hansen said Sunday.

Hansen said police received an initial report of three juveniles running away from a rollover accident just outside of Copperton.

The condition of the vehicle indicated that occupants of the car may have received signficant injuries, he said.

"A short time later, they were located by South Jordan Police. The fire department responded. We had them checked out and we had them transported to the hospital," Hansen said.

The conditions of the 11- and 12-year-olds were not immediately available. The two were released to their parents, a UPD report said.

"Because of the ages involved, I'm pretty confident they didn't have permission to use the car," Hansen said.

Hansen said police were working to piece together more specific information about the accident such as how the boys obtained the vehicle and how far they drove it before the accident occurred.

"It's obvious these individuals didn't have a lot of experience driving and lost control of the vehicle," Hansen said.

This story will be updated as more information becomes available.

CONTRIBUTING: Simone Seikaly, KSL Radio