London Police and fire officials were called out to an arson scene early Sunday morning at a home in Lambeth.
It happened around 5:30am at 130 Sunray Avenue.
A lit Molotov cocktail was found at the scene and was quickly put out.
Damage is estimated at around $500 to a garage door.
Police have since made an arrest in relation to the arson, but are still investigating.
Sunray Avenue has been in the same situation before with three suspicious fires happening in July 2011.
Anyone with information in relation to this incident is asked to call the London Police Service at (519) 661-5670 or Crime Stoppers at 1-800-222-TIPS (8477).