The fire, at the Landmark Diner, at 265 Highland Ave., in Briarcliff Manor, began around 9:45 a.m., Thursday, Aug. 22, said the Briarcliff Police Department.
The fire, which including heavy flames throughout the building, has closed Route 9 from Acardia to Scarborough Road, the police department said.
Police are asking drivers to avoid the area for the next several hours as the fire is brought under control.
No injuries were immediately reported.
This is a developing story. Check back to Daily Voice for updates.
Click here to follow Daily Voice Pleasantville and receive free news updates.