Toronto police are warning the public to be vigilant after a string of six suspicious fires along the same Etobicoke street early Saturday morning.

Investigators said the fires were set along Woolenscote Cir., in the Smithfield neighbourhood, using an “unknown accelerant.” The flames caused minor damage to several homes on the residential street.

Police are asking residents of the area to report any suspicious activity. Anyone with information can contact police at 416-808-2300 or anonymously through Crime Stoppers.