A Bronx nursing home worker has been indicted after the worker was allegedly caught sexually assaulting an elderly woman with Alzheimer's disease, authorities said.

A non-clinical staff member at Hudson Pointe at Riverdale was naked in a laundry closet with the woman, who is in her 80s, when a co-worker opened the closet, nursing home officials said. 

The co-worker reported it to authorities. The worker accused of sexual abuse, who had been working at Hudson Pointe for 12 years, has been indicted and is due back in court Jan. 18. It's not clear if there are other victims.

In a statement to NBC 4 New York, nursing home administrator David Moskowitz said officials immediately contacted police, the state Department of Health and the alleged victim's family. 

"We are shocked that an incident of this nature could have occurred at our center -- it is in no way reflective of the care and compassion that our staff shows residents on a daily basis," said Moskowitz. "We offer our sincere apology to the family and pledge to be supportive of them throughout this process."