Two boys aged 10 have been charged with raping an eight-year-old girl following an incident in Hayes, west London, in October.
The alleged sex attack relates to an incident in a park off College Way, Hayes.
Scotland Yard said the pair would appear before magistrates in Uxbridge on Thursday.
Police officers were called in by the girl's family after she returned home and said she had been raped.
A Met police spokesman said the charges were made following advice from the Crown Prosecution Service.
"This is in relation to an alleged incident in west London in October 2009," he added.
"They are due to appear at Uxbridge Magistrates' Court on Thursday, December 17, 2009."
The alleged attack was investigated by officers from the Met's recently reorganised specialist Sapphire Unit.
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