Most Residents Allowed Home After House Explosion in London, ON

An aerial view of the massive explosion that destroyed several homes in a London, Ont. neighbourhood. London Police Service

LONDON, ON—All but 12 of 100 homes evacuated after an explosion in a southwestern Ontario city have been cleared for residents to return.

Seven people were injured Wednesday night after the blast, which was caused by a vehicle slamming into a home and hitting a gas line, police said.