Police questioned the suspect in the presence of his father before releasing him.
The boy is alleged to have raped the girl during recess break between June 17 – June 21.
The mother of the victim lodged a complaint with the police when the child started experiencing body pains.
Last week, a 16 year old boy was charged for raping a youngster in Nadi.
Meanwhile, police investigations continue into the alleged murder-suicide of a couple whose bodies were discovered lying in a pool of blood in their Vatuwaqa home. Relatives, friends and workmates of the 32 year olds are currently being questioned by police.