Preliminary police investigations show that Mugaga started defiling the minor before he decided to rent for her a house in Nyendo, a suburb of Masaka town where she was found following her disappearance from her parents home for days.
Bukomansimbi Police are holding a man accused of eloping with a 13-year-old girl.
The suspect is 35-year-old William Kato Mugaga, a resident of Nkalwe Village in Butenga Sub County in Bukomansimbi district.
Preliminary police investigations show that Mugaga started defiling the minor before he decided to rent for her a house in Nyendo, a suburb of Masaka town where she was found following her disappearance from her parent's home for days.
The minor's mother, Maxesia Nasazi says her daughter disappeared last week but they received information that she had been spotted in Nyendo.
According to Nasazi, she immediately filed a complaint at Butenga Police station, which coordinated Masaka police station and started hunting for the suspects in vain.
The Bukomansimbi District Police Commander, Isabirye Kalori, says police detectives picked up Mugaga from Nkalwe where he was hiding and led them to Nyendo in Masaka where he had rented a house for the minor.
He says they will subject the defilement victim and suspect to medical examinations to establish their health status. Kalori says they are also likely to charge Mugaga with defilement and eloping with a minor once their investigations are complete.
Cases of defilement are common in Bukomansimbi district. Last month, police arrested a teacher at St Leonard - Kibanda Primary school in Butenga Sub County for allegedly defiling a primary six pupil.
Residents blame the rising cases of sexual harassment and other capital offences to drug abuse in the district. Paul Matovu, a resident of Butenga, says Butenga and Kitanda have the biggest marijuana plantations in the district.
He says police have tried to fight marijuana growing in vain. Lameck Kigozi, the Southern Region Police spokesperson, has asked members of the public to help police in the fight against drug abuse in their areas, saying police can only do little without support from residents.