They immediately began to secure the area, bar any entry by people or vehicles and assess the risk. Advertisement AdvertisementAdvertisement AdvertisementInside the O'Brien neighbourhood home, the unnamed man had an unknown quantity of the two explosive ingredients, an oxidizer and a fuel. Fortunately, the man walked himself outside to police, but the house and garage sustained significant damage. "No members of the public, no members of RCMP and police, or any residences in the area were affected by the blast." Subscribers gain unlimited access to The Edmonton Journal, Edmonton Sun, National Post and 13 other Canadian news sites.