Children play with an empty grenade launcher in Tskhinvali, Georgia in September 2008. Photo: CFP

A young child sparked panic at his Swedish pre-school when he brought in a grenade he found on a military firing range to show his friends, local officials said on Wednesday.

The child arrived with the grenade in his hand at the school in Kristianstad on Tuesday.

A teacher who saw the grenade contacted police.

Police officers were able to determine it was a "dangerous" grenade the boy had picked up this summer at the Rinkaby firing range, located outside Kristianstad.

They blocked off the area and the national bomb squad neutralized the ammunition at the scene several hours later.

"We don't know how bad the damages would have been" if it had exploded, a police spokesman told AFP.

AFP