Published: Apr 09, 2013 3:41 PM EDT
Updated: Apr 09, 2013 4:38 PM EDT

COLLIER COUNTY, Fla.- There was a brief scare at the Collier County Sheriff's Office today, after a man told deputies he had a grenade in his car.

It turns out, he was simply trying to turn over the device to authorities. Deputies closed part of the Sheriff's Office and courthouse parking lot while they investigated. They called in the bomb squad to examine the grenade.

Vito Bono says he found the explosive 50 years ago, and had it in a safe ever since.

Once they discovered the grenade was not a threat, deputies re-opened the parking lot.