Watch the dramatic scenes as car hits house, causing explosion in London, Ontario

This was the aftermath minutes after a vehicle drove into a house in London, Ont., setting off an explosion and a large fire.

Police were called to a house on Woodman Ave. near Queens Ave. at about 10:40 p.m. to reports that a vehicle had struck a house.

Shortly after a a woman was arrested, the house exploded, sending debris across the nearby area and setting several homes nearby on fire.

Seven people were sent to hospital, including four firefighters, two police officers and a civilian.

Three of the firefighters have since been released from hospital and one remains in hospital in stable condition. Both officers have also been released and the condition of the civilian is not known.

Police said Daniella Alexandra Leis, 23, of Kitchener, Ont., has been charged with impaired driving causing bodily harm and driving above the legal limit.

Acting Deputy Fire Chief Jack Burt told CBC that more than 50 firefighters were at the scene at the height of the fire.

"I could see sparks exploding over the trees," Joanne Bishop, a resident in the area, told CBC. "These are our friends and neighbours, so I think people are scared right now."

Witness Christina Curtis said: "There's debris everywhere, windows are shattered. We watched the roof fly higher than the trees on the street. The sound was extremely loud. You could feel the explosion go right through you.”