Windsor police and an investigator with the Office of the Ontario Fire Marshal is looking into a “suspicious” fire at a Windsor pizzeria.

Damage is estimated at $600,000.

Crews were called to Wyandotte Street East and Marion Avenue about 4:15 a.m. on Monday for a working fire.

Officials say the fire started inside The Original Pizza Brothers restaurant.

At least one neighbouring house had to be evacuated as crews battled the blaze.

No one was hurt. There is no word yet on a cause of the fire.