London firefighters responded to a major fire at a barn-like outbuilding in south London late Monday night after flames caused significant structural damage.

Crews were dispatched to a shop and shed near the intersection of Scotland Drive and Wellington Road shortly before midnight. According to London Fire officials, the intensity of the blaze weakened the structure, resulting in a collapsed roof and part of a wall giving way.

Due to concerns about the building’s stability, firefighters switched to a defensive approach, battling the flames from outside. A water shuttle operation was also established to provide an adequate supply for firefighting efforts.

Officials confirmed that everyone was accounted for and no injuries were reported.