A police tent covers the scene where one of the boys was found
Two brothers have been charged with attempted murder over an incident which left one child with serious head injuries and another with knife wounds.
The boys, aged 10 and 11, were arrested after another 11-year-old boy was found with head injuries in a ravine in Edlington, Doncaster, on Sunday.
His nine-year-old friend was found bleeding from knife wounds nearby and has undergone surgery.
The boys are also charged with robbery, the Crown Prosecution Service said.
They were remanded into secure local authority care after appearing at Doncaster Youth Court and will next appear in the same court on 14 April.
The older boy wore a red England shirt and his younger brother a grey T-shirt as the charges were read to them.
Chris Hartley, head of the service's Crown Court Unit, said: "We have now authorised the police to charge a boy aged 10 and a boy aged 11.
Pair charged over attack on boys
"Each boy is charged with an offence of attempted murder for each victim and each boy is also charged with an offence of robbery against each victim.
"This gives a total of four charges for each boy."
The nine-year-old victim has already had one operation on his arm at Doncaster Royal Infirmary and is set to undergo a second.
The 11-year-old boy was airlifted to Sheffield Children's Hospital in a critical condition after the incident but was taken off a ventilator and moved to a high-dependency ward on Monday.
His condition is said to be "stable and improving".
Earlier his family said they were grateful for the help they had received from the community in the former mining village.
Saturday's incident, Edlington, South Yorkshire
Nine-year-old boy found injured on Auburn Road
Critically injured 11-year-old found
Two boys, aged 10 and 11, arrested