JACKSBORO, TN (AP) - Tennessee authorities say three ATV riders from North Carolina were killed when their vehicle fell down an embankment through thick brush.

Media outlets report a fourth person was found injured by emergency responders. The Campbell County Sheriff's office said Monday the injured minor was airlifted to a Knoxville hospital. His condition was not immediately known.

The crash occurred Sunday in the area of a privately owned, off-road adventure park that offers riding trails.

Authorities have identified the dead as 47-year-old Ronnie Akins, 19-year-old Dillon Akins and 19-year-old Jonathan Laws, all of Weaverville, North Carolina.

The sheriff's office says the ATV left a trail and fell more than 100 feet (30 meters). Rescuers had to cut through thick brush and trees to reach the crash site.

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