KANSAS CITY (AP) – Kansas City authorities say a house exploded in the southeast part of the city, injuring a female neighbor.

Fire Chief Paul Berardi says no one was inside the house that blew up on Wednesday night. The woman was hospitalized with minor injuries in the blast that damaged two neighboring houses.

Berardi described what was left of the house as “a pile of sticks.”

The cause of the explosion is unknown. Police and firefighters are investigating.

Neighbors reported smelling gas before the explosion.