Fire officials are now saying an early morning fire at a restaurant was intentionally set.
Windsor fire was called to the 600-block of Glengarry Ave just after 5am Saturday to find the commercial section of the building on fire.
No injuries are reported, but three people from the residential part of the building have been left homeless.
Damage is estimated at $50,000 to the apartments and $550,000 to the restaurant.
Windsor police have been called in to investigate.