The body of a woman has been found at an aged care home in Sydney’s west.

Emergency services were called to the Evans Road facility in Rooty Hill about 11.45pm on Thursday.

On arrival, police officers discovered the body of an 84-year-old woman inside one of the buildings.

A 53-year-old woman, who is believed to be known to the deceased, was arrested at the scene.

She was taken to Mount Druitt Hospital for an assessment.

Police established a crime scene as detectives began an investigation. 

A report will be prepared for the information of the coroner.

Anyone with information about the incident is urged to contact Crime Stoppers.

The body of a woman was found at an aged care home on Evans Road in Rooty Hill, Sydney’s west, on Thursday night (Google street view)

A 53-year-old woman, believed to be known to the deceased, was arrested at the scene