While the case was undergoing a trial at the Bodmin Magistrates Court in Cornwall, he pleaded guilty to two counts of rape. (Representational Image)

Plymouth: Police in UK have arrested an 11-year-old boy for sexually assaulting his 9-year-old sister at their family home in Plymouth, a city in England.

According to a report in the Independent, the accused was arrested after two indecent photographs of the sexual attack on his sister were found on his mobile phone.

The accused who cannot be named for legal reasons, was believed to have ejaculated during one of the sexual encounters, said police.

While the case was undergoing a trial at the Bodmin Magistrates Court in Cornwall, he pleaded guilty to two counts of rape. He has been slapped with a 12-month intensive referral order which would require him to work in coordination with counselors to change his behavior.

The 11-year-old will be put on the sex offenders list for a term of two years, the court ruled. He will also be monitored while using the internet.

Judge Diane Baker told the accused that if her were older, he would have be awarded with a prison sentence for a longer term. However, since the accused was only 11-year-old, he was given referral order.