The Ontario Fire Marshal’s office continues to investigate after Friday night’s explosion and fire in Chatham. 
It took 20 fire fighters from three stations over four hours to battle the flames.
One person was taken to hospital with serious injuries.
Officials have not yet released a damage estimate, and say the investigation could take several days to complete.
Meantime officials are trying to pinpoint what sparked a house fire in Dresden.
Crews were called to the Richmond Street home around quarter after 7pm Saturday evening.
No one was hurt, and fire fighters were able to rescue a number of pets inside.
One neighbouring home suffered minor damage.
And investigators are still trying to determine what sparked a house fire in Chatham early Saturday morning.
Fire fighters arrived at the Edgar Street property shortly after 4:30 and took up a defensive strategy to battle the flames and prevent the fire from spreading.
Another home suffered some minor heat damage.
Damage is pegged at $130,000.