SEDGWICK COUNTY —  Law enforcement authorities are investigating a Kansas man on parole for murder for alleged child sex crimes.

Parents of an 8-year-old girl contacted police with concerns the child was being sexually assaulted by her 56-year-old baby sitter, according to Officer Charley Davidson.

The sexual assaults reportedly occurred over the past couple of years, according to Davidson.

On Monday, police booked 56-year-old Clifford Eugene Cox on requested charges of rape of a victim under the age of 14, aggravated criminal sodomy and aggravated indecent liberties with a child, according to Davidson and the Sedgwick County booking report.

Cox was on parole after serving time for a 1984 murder in Cowley County, according to the Kansas Department of Corrections.