A 20-year-old Kennewick man is in the Benton County Jail facing charges.

Authorities say Ramon Candido was booked into the jail facing third-degree child rape charges, after admitting to investigators he was having a sexual relationship with a 16-year-old 'girlfriend.

Officials didn't say how they discovered the relationship, but Candido was interviewed by authorities who learned of the situation.  The investigation continues.