BELLMAWR, NJ. (CBS) — Police have arrested and charged a man in the sexual assault of young girl in Atlantic County, New Jersey.

Authorities say 30-year-old James Ward was arrested Friday at his home in Bellmawr after a two-year investigation.

The Atlantic County Prosecutor’s Office says Ward, the fiancé of the victim’s mother, sexually assaulted the 7-year-old girl at her home in Brigantine while her mother was not there and she was left in his care.

Ward was charged aggravated sexual assault, endangering the welfare of a child and related offenses.

He was being held on $350,000 full cash bail.