THE BRONX - A male nurse at a Riverdale health care center has been arraigned on rape charges.

Authorities say Nanic Aidasani, 42, of Yonkers, sexually assaulted a 64-year-old woman at the Manhattanville Health Care Center.

They say an employee discovered Aidasani on top of the woman Tuesday morning. According to court documents, the victim suffers from dementia. The victim's gown was reportedly unsnapped and the front of her diaper was unfastened.

The victim's daughter says that even though her mother has limited cognitive ability, she still believes that she knows something terrible has happened to her.

Aidasani was taken into custody at the nursing home, questioned and then charged. The victim was taken to a hospital for treatment.

A judge set Aidasani's bail at $20,000. He is due back in court on Friday.