MORRIS COUNTY - A 21-year-old man shot and killed himself at a firing range Saturday, according to the Morris County Prosecutor's Office.

It happened inside the RTSP shooting range in Randolph at around 7:30 p.m.

Prosecutors say the shooting was an isolated incident and there was no threat to the community.

RTSP posted a message on its Facebook page that says, "Our hearts go out to the family who lost their loved one."

The man's identity has not yet been released.