Police in south shore St. Bruno are investigating after an explosion lightly damaged a minivan parked in a driveway overnight.

Police weren't called until this morning, when the owner noticed traces of the explosion underneath where the van was parked.

It seems the occupants of the house did hear the blast go off, but dismissed it as an earthquake, similar to the one two weeks ago.

Nobody was hurt. Police have cordoned off the area around the house while they investigate.