mi-barn-fire

Investigators believed the toddler and his golden retriever were in the barn at 1636 Lobsinger Line just south of St. Jacobs during the fire and would not have survived. (Jane Van Koeverden/CBC)

The search for two-year-old Steven Martin, who is unaccounted for following a Woolwich fire that destroyed his family's barn last Friday, has entered the final stages, an investigator with the Ontario Fire Marshal's office says.

"There's one more area that we have left to search. We do not consider that an important area of interest to us. But we want to make sure our bases are covered," Greg Olson, an investigator with the office of the Ontario fire marshal, told reporters on Monday.

Investigators believed the toddler and his golden retriever were in the barn at 1636 Lobsinger Line just south of St. Jacobs during the fire and would not have survived.

"At this point we have absolutely no human remains that have been located."

Olson said the large amount of straw and hay combined with a metal roof that prevented the fire to ventilate caused the barn to become a "crematorium."

Olson said they are still trying to determine the cause of the fire but are looking into a number of possible sources, including whether there was a spontaneous combustion of the hay or some kind of malfunction with the electrical power.