Little Falls police are now investigating a Little Falls fire that was deemed suspicious after four homes were destroyed and 11 people were displaced on June 12.
The Furnace Street fire started Saturdaynight around 9 p.m.
Fire officials say it started in a vacant home and spread to three others.
Five families were affected, and are being assisted by the American Red Cross.
A dog that was missing following the fire has been found, and returned to its family.
Fire crews from at least six departments were called in to fight the fire.