Two siblings have been remanded in Police custody for alleged incestuous relationship which produced an 18-year-old boy.

53-year-old Issifu Abubakari and 36-year-old Ramatu were arrested on Wednesday December 11, 2013 and charged with the offence.

They are alleged to have been in a relationship for about 20 years.

Kumasi-based Nhyira FM's Ohemeng Tawiah reported thatthe couple relocated from Dawu, near Agona, to Koforidua after family members and other relatives raised suspicions about their relationship.

After 20 years, relatives of the couple discovered that they had been living as husband and wife with an 18-year-old son in his first year in Senior High School.

Even though the brother and sister were summoned to the chief of their village, and made to perform some rites to 'cleanse' them, they continued to have sexual relationship, Ohemeng reported.

He said the suspects were picked by the police while they attending a funeral in the Ashanti Region.

ASP Francis Akwasi Asante, Agona District Chief Commander, confirmed the story.

He said although there were concerns about the future of 18-year-old boy, the police would wait for the decision of the court.