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.
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