A suspected WWI German rifle grenade was found along the River Don near Sheffield by a group of volunteers helping to clean-up the river bank. The item was found in Attercliffe and was eventually destroyed in a controlled explosion on nearby wasteland by an Explosive Ordnance Disposal (EOD) team.
The Germans are known to have hand-dropped grenades from Zeppelins and aircraft during their bombing campaign in WWI, although a more likely source of this rifle grenade is that it was an unwanted souvenir disposed of in what was thought to have been a discreet location.
The grenade was declared live and fortunately no harm was caused.