Cumbria Police has launched an investigation following the death of an eight-year-old boy.
Emergency services were called out on Saturday, September 28, to a farm in the Warcop area following a report that a child had been seriously injured by a firearm at the property.
Police and North West Ambulance Service attended.
The firearm was secured at the scene by police and an eight-year-old boy was taken to hospital by air ambulance having suffered serious and life-threatening injuries to his head and face, Cumbria Police reported.
The boy has died overnight.
Officers arrested a man in his 60s at the scene on suspicion of assault GBH.
He remains in police custody but is now under arrest on suspicion of gross negligence manslaughter.