Detectives are investigating a 9-year-old boy's allegations that his mother videotaped him being raped by a man, then sold or gave away the tape.

The Broward County Sheriff's Office (search) is looking into a formal complaint that the boy was raped at least five times between July and October, spokeswoman Veda Coleman-Wright said. Detectives are searching for the tape, she said.

The man, Kevin Jerome Bynes, 27, of Lauderdale Lakes, was arrested Tuesday on five counts of sexual battery on a child under 12. He was being held without bond in the Broward County Jail (search).

Bynes' arrest affidavit states that the boy's older sister told detectives that she saw Bynes enter her brother's bedroom and that she believed her brother was being assaulted. He has denied the charges.

Bynes has violated his probation on false imprisonment charges out of Leon County, the sheriff's office said.

The boy's 29-year-old mother has been jailed since Oct. 18 on charges stemming from an aggravated battery charge in an unrelated case. She also is denying the allegations that she videotaped her son being raped.