Arson is suspected once again in a Toronto fire that broke out Sunday night in the city's west-end.

The fire broke out in a dumpster behind a Goodwill store in the Dundas Street and Islington Avenue area. The fire quickly spread to a donation box and then to the roof of the building.

Nobody was hurt in the fire but damage to the building was estimated at half a million dollars.

The fire marshall's office has been called in to investigate.

Toronto has been hit with arson more than 40 times during the past few months.