Residents assessed for smoke inhalation after Greystanes nursing home fire

More than two dozen people have been assessed for smoke inhalation after a nursing home caught on fire in Sydney's west.

Emergency services were called to the nursing home on Old Prospect Road in Greystanes just after 5.40pm when the building filled with smoke.

Paramedics treat residents at the aged care home in Greystanes. Photo: Seven News

The fire was traced to the laundry and is thought to have started in a washing machine.

It was quickly contained by firefighters.

GREYSTANES| #FRNSW FF's exting fire in nursing home laundry. Some evacs. Fire contained. Fire ops continuing.

— Fire & Rescue NSW (@FRNSW) November 1, 2016

Ambulances and dozens of paramedics responded to the scene.

A NSW Ambulance spokeswoman said 26 patients were being assessed.

All patients were being treated at the scene and none were expected to be transported to hospital.